Twin cohort cohort
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Related entities (176)
Mentioned in (213)
Papers in which this entity is mentioned.
- Infant subcortical brain volumes associated with maternal obesity and diabetes: a large multicohort human study. (2026)
- Trajectories of genetic risk across dimensions of alcohol use behaviors. (2025)
- Reduction of APOE accounts for neurobehavioral deficits in fetal alcohol spectrum disorders. (2024)
- A global multicohort study to map subcortical brain development and cognition in infancy and early childhood. (2024)
- Biobank-scale methods and projections for sparse polygenic prediction from machine learning. (2023)
- Gene-alcohol interactions in birth defects. (2023)
- Genetic nurture effects for alcohol use disorder. (2023)
- Depression pathophysiology, risk prediction of recurrence and comorbid psychiatric disorders using genome-wide analyses. (2023)
- Multi-ancestry study of the genetics of problematic alcohol use in over 1 million individuals. (2023)
- DNA methylation and general psychopathology in childhood: an epigenome-wide meta-analysis from the PACE consortium. (2023)
- mutations, genetic mosaicism and human disease. (2022)
- Epigenetic profiling of social communication trajectories and co-occurring mental health problems: a prospective, methylome-wide association study. (2022)
- Research Review: A guide to computing and implementing polygenic scores in developmental research. (2022)
- Proportional intracranial volume correction differentially biases behavioral predictions across neuroanatomical features, sexes, and development. (2022)
- Reproducible brain-wide association studies require thousands of individuals. (2022)
- Mother-child similarity in brain morphology: A comparison of structural characteristics of the brain's reading network. (2022)
- Fetal Alcohol Spectrum Disorders: Awareness to Insight in Just 50 Years. (2022)
- DNA methylation in relation to gestational age and brain dysmaturation in preterm infants. (2022)
- Large-scale collaboration in ENIGMA-EEG: A perspective on the meta-analytic approach to link neurological and psychiatric liability genes to electrophysiological brain activity. (2021)
- Shared genetic risk between eating disorder- and substance-use-related phenotypes: Evidence from genome-wide association studies. (2021)
- Transcriptomic analyses of gastrulation-stage mouse embryos with differential susceptibility to alcohol. (2021)
- Multivariate analysis of 1.5 million people identifies genetic associations with traits related to self-regulation and addiction. (2021)
- Exposure to ethanol leads to midfacial hypoplasia in a zebrafish model of FASD via indirect interactions with the Shh pathway. (2021)
- Multifactorial Genetic and Environmental Hedgehog Pathway Disruption Sensitizes Embryos to Alcohol-Induced Craniofacial Defects. (2020)
- Patterns of Reliability: Assessing the Reproducibility and Integrity of DNA Methylation Measurement. (2020)
- Sibling comparisons elucidate the associations between educational attainment polygenic scores and alcohol, nicotine and cannabis. (2020)
- Transcriptome-Wide Regulation of Key Developmental Pathways in the Mouse Neural Tube by Prenatal Alcohol Exposure. (2020)
- Genetic identification of cell types underlying brain complex traits yields insights into the etiology of Parkinson's disease. (2020)
- DNA methylation and brain structure and function across the life course: A systematic review. (2020)
- Defining the Genetic, Genomic, Cellular, and Diagnostic Architectures of Psychiatric Disorders. (2019)
- Developmental topography of cortical thickness during infancy. (2019)
- Discovery of the first genome-wide significant risk loci for attention deficit/hyperactivity disorder. (2019)
- Association of a Schizophrenia-Risk Nonsynonymous Variant With Putamen Volume in Adolescents: A Voxelwise and Genome-Wide Association Study. (2019)
- Comparison of the 4-Digit Code, Canadian 2015, Australian 2016 and Hoyme 2016 fetal alcohol spectrum disorder diagnostic guidelines. (2019)
- Sex differences in the developing brain: insights from multimodal neuroimaging. (2019)
- Polygenic risk for alcohol misuse is moderated by romantic partnerships. (2019)
- Early adolescent aggression predicts antisocial personality disorder in young adults: a population-based study. (2019)
- Longitudinally Mapping Childhood Socioeconomic Status Associations with Cortical and Subcortical Morphology. (2019)
- Heritability of obsessive-compulsive trait dimensions in youth from the general population. (2018)
- Psychiatric Genomics: An Update and an Agenda. (2018)
- The Predictive Value of Developmental Assessments at 1 and 2 for Intelligence Quotients at 6. (2018)
- Twin study confirms virtually identical prenatal alcohol exposures can lead to markedly different fetal alcohol spectrum disorder outcomes-fetal genetics influences fetal vulnerability. (2018)
- Neuroepigenetics and addiction. (2018)
- Meta-Analyses of Externalizing Disorders: Genetics or Prenatal Alcohol Exposure? (2018)
- Diving into the world of alcohol teratogenesis: a review of zebrafish models of fetal alcohol spectrum disorder. (2018)
- Incorporating Functional Genomic Information to Enhance Polygenic Signal and Identify Variants Involved in Gene-by-Environment Interaction for Young Adult Alcohol Problems. (2018)
- The development of brain white matter microstructure. (2018)
- Immune Dysfunction and Autoimmunity as Pathological Mechanisms in Autism Spectrum Disorders. (2018)
- Genetic contributors to variation in alcohol consumption vary by race/ethnicity in a large multi-ethnic genome-wide association study. (2017)
- Gene-environment interactions in development and disease. (2017)
- Genetic correlates of the development of theta event related oscillations in adolescents and young adults. (2017)
- Genome-wide association analysis identifies common variants influencing infant brain volumes. (2017)
- Genome-wide association study of alcohol consumption and genetic overlap with other health-related traits in UK Biobank (N=112 117). (2017)
- Genome-Wide Association Studies of a Broad Spectrum of Antisocial Behavior. (2017)
- Phenotypic and familial associations between childhood maltreatment and cannabis initiation and problems in young adult European-American and African-American women. (2017)
- Perinatal maternal alcohol consumption and methylation of the dopamine receptor in the offspring: the Triple B study. (2016)
- Testing Causal Effects of Maternal Smoking During Pregnancy on Offspring's Externalizing and Internalizing Behavior. (2016)
- Parental divorce and initiation of alcohol use in early adolescence. (2016)
- Adolescent cannabis use and repeated voluntary unprotected sex in women. (2016)
- Neurobiological phenotypes associated with a family history of alcoholism. (2016)
- Age at first use and later substance use disorder: Shared genetic and environmental pathways for nicotine, alcohol, and cannabis. (2016)
- DNA methylation signature of human fetal alcohol spectrum disorder. (2016)
- Trajectories of cortical thickness maturation in normal brain development--The importance of quality control procedures. (2016)
- Effect of Marriage on Risk for Onset of Alcohol Use Disorder: A Longitudinal and Co-Relative Analysis in a Swedish National Sample. (2016)
- Epidemiology, Etiology, and Treatment of Isolated Cleft Palate. (2016)
- Antenatal depression, treatment with selective serotonin reuptake inhibitors, and neonatal brain structure: A propensity-matched cohort study. (2016)
- Genetic and environmental influences interact with age and sex in shaping the human methylome. (2016)
- The Genetics of Fetal Alcohol Spectrum Disorders. (2016)
- Role of overlapping genetic and environmental factors in the relationship between early adolescent conduct problems and substance use in young adulthood. (2016)
- The heritability of alcohol use disorders: a meta-analysis of twin and adoption studies. (2015)
- Early onset alcohol use and self-harm: a discordant twin analysis. (2015)
- Child psychiatry branch of the National Institute of Mental Health longitudinal structural magnetic resonance imaging study of human brain development. (2015)
- Parental Separation and Offspring Alcohol Involvement: Findings from Offspring of Alcoholic and Drug Dependent Twin Fathers. (2015)
- Genetic and environmental contributions to the relationships between brain structure and average lifetime cigarette use. (2015)
- What twin studies tell us about the heritability of brain development, morphology, and function: a review. (2015)
- A Genome-Wide Association Study of a Biomarker of Nicotine Metabolism. (2015)
- Annual research review: Growth connectomics--the organization and reorganization of brain networks during normal and abnormal development. (2015)
- Longitudinal development of hormone levels and grey matter density in 9 and 12-year-old twins. (2015)
- Gene-Environment Interaction Effects of Peer Deviance, Parental Knowledge and Stressful Life Events on Adolescent Alcohol Use. (2015)
- Genetic influences on pubertal development and links to behavior problems. (2015)
- Genetic influences on resting-state functional networks: A twin study. (2015)
- Importance of genetics in fetal alcohol effects: null mutation of the nNOS gene worsens alcohol-induced cerebellar neuronal losses and behavioral deficits. (2015)
- DNA methylation and healthy human aging. (2015)
- Quantitative tract-based white matter heritability in twin neonates. (2015)
- Parental separation, parental alcoholism, and timing of first sexual intercourse. (2015)
- Moderator effects of working memory on the stability of ADHD symptoms by dopamine receptor gene polymorphisms during development. (2014)
- A screen of zebrafish mutants identifies ethanol-sensitive genetic loci. (2014)
- Dissecting impulsivity and its relationships to drug addictions. (2014)
- Heritability and molecular-genetic basis of the P3 event-related brain potential: a genome-wide association study. (2014)
- Genetic influences on alcohol use across stages of development: GABRA2 and longitudinal trajectories of drunkenness from adolescence to young adulthood. (2014)
- High-throughput transcriptome sequencing identifies candidate genetic modifiers of vulnerability to fetal alcohol spectrum disorders. (2014)
- Genomic factors that shape craniofacial outcome and neural crest vulnerability in FASD. (2014)
- Heritability and genomics of gene expression in peripheral blood. (2014)
- Neural crest development in fetal alcohol syndrome. (2014)
- Heritability and molecular-genetic basis of resting EEG activity: a genome-wide association study. (2014)
- Intersubject variability of and genetic effects on the brain's functional connectivity during infancy. (2014)
- Cannabis controversies: how genetics can inform the study of comorbidity. (2014)
- Gene-ethanol interactions underlying fetal alcohol spectrum disorders. (2014)
- Genetic influences on brain developmental trajectories on neuroimaging studies: from infancy to young adulthood. (2014)
- Epigenetics, microRNA, and addiction. (2014)
- Risks for early substance involvement associated with parental alcoholism and parental separation in an adolescent female cohort. (2014)
- In search of rare variants: preliminary results from whole genome sequencing of 1,325 individuals with psychophysiological endophenotypes. (2014)
- Fetal alcohol spectrum disorders and their transmission through genetic and epigenetic mechanisms. (2014)
- Temporal specification and bilaterality of human neocortical topographic gene expression. (2014)
- Mosaic epigenetic dysregulation of ectodermal cells in autism spectrum disorder. (2014)
- Development of thalamocortical connectivity during infancy and its cognitive correlations. (2014)
- Mitogen-activated protein kinase modulates ethanol inhibition of cell adhesion mediated by the L1 neural cell adhesion molecule. (2013)
- A genetic perspective on the proposed inclusion of cannabis withdrawal in DSM-5. (2013)
- Linear mixed-effects modeling approach to FMRI group analysis. (2013)
- In utero alcohol exposure, epigenetic changes, and their consequences. (2013)
- The Finnish Twin Cohort Study: an update. (2013)
- Magnetic resonance imaging of the newborn brain: automatic segmentation of brain images into 50 anatomical regions. (2013)
- Preliminary evidence for a gene-environment interaction in predicting alcohol use disorders in adolescents. (2013)
- Childhood sexual abuse and early substance use in adolescent girls: the role of familial influences. (2013)
- Bridging animal and human models of exercise-induced brain plasticity. (2013)
- Age of alcohol and cannabis use onset mediates the association of transmissible risk in childhood and development of alcohol and cannabis disorders: evidence for common liability. (2013)
- Genes of experience: explaining the heritability of putative environmental variables through their association with behavioural and emotional traits. (2013)
- Alcohol consumption in men is influenced by qualitatively different genetic factors in adolescence and adulthood. (2013)
- Common liability to addiction and "gateway hypothesis": theoretical, empirical and evolutionary perspective. (2012)
- Is the P3 amplitude reduction seen in externalizing psychopathology attributable to stimulus sequence effects? (2012)
- Development of cortical surface area and gyrification in attention-deficit/hyperactivity disorder. (2012)
- The co-occurring use and misuse of cannabis and tobacco: a review. (2012)
- The effects of age at drinking onset and stressful life events on alcohol use in adulthood: a replication and extension using a population-based twin sample. (2012)
- Population-specificity of human DNA methylation. (2012)
- White matter heritability using diffusion tensor imaging in neonatal brains. (2012)
- White matter development in early puberty: a longitudinal volumetric and diffusion tensor imaging twin study. (2012)
- Environmental influences predominate in remission from alcohol use disorder in young adult twins. (2012)
- Molecular genetics of B-precursor acute lymphoblastic leukemia. (2012)
- Variation in the oxytocin receptor gene is associated with pair-bonding and social behavior. (2012)
- CNVs: harbingers of a rare variant revolution in psychiatric genetics. (2012)
- Fractional anisotropy of water diffusion in cerebral white matter across the lifespan. (2012)
- The genetic basis of addictive disorders. (2012)
- The impact of gene-environment interaction on alcohol use disorders. (2012)
- Maternal immune activation yields offspring displaying mouse versions of the three core symptoms of autism. (2012)
- Detectable clonal mosaicism from birth to old age and its relationship to cancer. (2012)
- Gene expression changes in C57BL/6J and DBA/2J mice following prenatal alcohol exposure. (2012)
- High frequencies of de novo CNVs in bipolar disorder and schizophrenia. (2011)
- Common genetic and environmental contributions to post-traumatic stress disorder and alcohol dependence in young women. (2011)
- Sex differences and developmental stability in genetic and environmental influences on psychoactive substance consumption from early adolescence to young adulthood. (2011)
- An Interdisciplinary Approach to Studying Gene-Environment Interactions: From Twin Studies to Gene Identification and Back. (2011)
- A Drosophila model for fetal alcohol syndrome disorders: role for the insulin pathway. (2011)
- Subtle decreases in DNA methylation and gene expression at the mouse Igf2 locus following prenatal alcohol exposure: effects of a methyl-supplemented diet. (2011)
- Psychiatric 'diseases' versus behavioral disorders and degree of genetic influence. (2011)
- Linkage analysis merging replicate phenotypes: an application to three quantitative phenotypes in two African samples. (2011)
- Motivation deficit in ADHD is associated with dysfunction of the dopamine reward pathway. (2011)
- Gene-environment interaction in psychological traits and disorders. (2011)
- Strain differences in developmental vulnerability to alcohol exposure via embryo culture in mice. (2011)
- Human aggression across the lifespan: genetic propensities and environmental moderators. (2011)
- Catechol-o-methyl transferase (COMT) val158met polymorphism and adolescent cortical development in patients with childhood-onset schizophrenia, their non-psychotic siblings, and healthy controls. (2011)
- A population-based twin study of the genetic and environmental relationship of major depression, regular tobacco use and nicotine dependence. (2011)
- The contribution of parental alcohol use disorders and other psychiatric illness to the risk of alcohol use disorders in the offspring. (2011)
- Cleft lip and palate: understanding genetic and environmental influences. (2011)
- Significant differences in global genomic DNA methylation by gender and race/ethnicity in peripheral blood. (2011)
- Evidence for gene-environment interaction in a genome wide study of nonsyndromic cleft palate. (2011)
- Heritability of delay discounting in adolescence: a longitudinal twin study. (2011)
- The neuroscience of suicidal behaviors: what can we expect from endophenotype strategies? (2011)
- Predicting alcohol consumption in adolescence from alcohol-specific and general externalizing genetic risk factors, key environmental exposures and their interaction. (2011)
- Genomic regions identified by overlapping clusters of nominally-positive SNPs from genome-wide studies of alcohol and illegal substance dependence. (2011)
- Genome-wide scan for self-rating of the effects of alcohol in American Indians. (2010)
- Genetic control over the resting brain. (2010)
- Genetic and environmental contributions to neonatal brain structure: A twin study. (2010)
- Dimensions and correlates of attention deficit/hyperactivity disorder and Sluggish Cognitive Tempo. (2010)
- Cortical thickness or grey matter volume? The importance of selecting the phenotype for imaging genetics studies. (2010)
- Normal development of brain circuits. (2010)
- The early growth and development study: using the prospective adoption design to examine genotype-environment interplay. 2008. (2010)
- Structural MRI of pediatric brain development: what have we learned and where are we going? (2010)
- Socioeconomic status and the brain: mechanistic insights from human and animal research. (2010)
- The development of gyrification in childhood and adolescence. (2010)
- Mothers' maximum drinks ever consumed in 24 hours predicts mental health problems in adolescent offspring. (2010)
- Gender differences in the relationship of internalizing and externalizing psychopathology to alcohol dependence: likelihood, expression and course. (2010)
- The relationship between genetic influences on alcohol dependence and on patterns of alcohol consumption. (2010)
- Evidence for genes on chromosome 2 contributing to alcohol dependence with conduct disorder and suicide attempts. (2010)
- The genetic interpretation of area under the ROC curve in genomic profiling. (2010)
- Gene--environment-wide association studies: emerging approaches. (2010)
- Common genetic contributions to alcohol and cannabis use and dependence symptomatology. (2010)
- Peer substance involvement modifies genetic influences on regular substance involvement in young women. (2010)
- Heritability of regional and global brain structure at the onset of puberty: a magnetic resonance imaging study in 9-year-old twin pairs. (2009)
- Deciphering the impact of common genetic variation on lung cancer risk: a genome-wide association study. (2009)
- Interaction between the serotonin transporter gene (5-HTTLPR), stressful life events, and risk of depression: a meta-analysis. (2009)
- Environmental adversity and increasing genetic risk for externalizing disorders. (2009)
- Ethanol teratogenesis in five inbred strains of mice. (2009)
- Differences in genetic and environmental influences on the human cerebral cortex associated with development during childhood and adolescence. (2009)
- Genomewide association studies: history, rationale, and prospects for psychiatric disorders. (2009)
- Dramatic increase in heritability of cognitive development from early to middle childhood: an 8-year longitudinal study of 8,700 pairs of twins. (2009)
- Parental alcoholism and offspring behavior problems: findings in Australian children of twins. (2009)
- An exploration of attitudes among black Americans towards psychiatric genetic research. (2009)
- Can we identify genes for alcohol consumption in samples ascertained for heterogeneous purposes? (2009)
- New insights into the genetics of addiction. (2009)
- Timing of first alcohol use and alcohol dependence: evidence of common genetic influences. (2009)
- Genetic determinants of height growth assessed longitudinally from infancy to adulthood in the northern Finland birth cohort 1966. (2009)
- Perceived peer delinquency and the genetic predisposition for substance dependence vulnerability. (2009)
- Parental alcoholism and offspring behavior problems: findings in Australian children of twins. (2009)
- Association of psychiatric and substance use disorder comorbidity with cocaine dependence severity and treatment utilization in cocaine-dependent individuals. (2009)
- The enrichment study of the Minnesota twin family study: increasing the yield of twin families at high risk for externalizing psychopathology. (2009)
- Genetic and environmental influences on externalizing behavior and alcohol problems in adolescence: a female twin study. (2009)
- Alcohol consumption indices of genetic risk for alcohol dependence. (2009)
- A structural MRI study of human brain development from birth to 2 years. (2008)
- Strengthening the case: prenatal alcohol exposure is associated with increased risk for conduct disorder. (2008)
- Primary cortical folding in the human newborn: an early marker of later functional development. (2008)
- Deviant P300 amplitude development in males is associated with paternal externalizing psychopathology. (2008)
- Association study of Wnt signaling pathway genes in bipolar disorder. (2008)
- The changing impact of genes and environment on brain development during childhood and adolescence: initial findings from a neuroimaging study of pediatric twins. (2008)
- Marital quality moderates genetic and environmental influences on the internalizing spectrum. (2008)
- Effect of in utero and early-life conditions on adult health and disease. (2008)
- Toward DSM-V: an item response theory analysis of the diagnostic process for DSM-IV alcohol abuse and dependence in adolescents. (2008)
- Amygdala volume in major depressive disorder: a meta-analysis of magnetic resonance imaging studies. (2008)
- Genetic and environmental factors in complex neurodevelopmental disorders. (2007)
- Variance decomposition using an IRT measurement model. (2007)
- Structural abnormalities in the brains of human subjects who use methamphetamine. (2004)
- C-reactive protein: a critical update. (2003)
- A genome-wide scan to identify loci for smoking rate in the Framingham Heart Study population. (2003)
- A Long-Term Perspective of FAS. (1994)
- Transmission of social attitudes. (1986)
Merged raw entities (97)
All extracted name/type variants the normalize job merged into this entity. Use this to spot wrong merges, or aliases that should be split off.
| Raw name | Type | Papers | Mentions |
|---|---|---|---|
| monozygotic twins | cohort | 85 | 131 |
| twins | cohort | 74 | 153 |
| dizygotic twins | cohort | 70 | 104 |
| mz twins | cohort | 47 | 108 |
| twin studies | cohort | 46 | 70 |
| dz twins | cohort | 40 | 94 |
| twin cohort | cohort | 37 | 40 |
| twin study | cohort | 24 | 31 |
| twin pairs | cohort | 18 | 26 |
| female twins | cohort | 14 | 18 |
| mz twin pairs | cohort | 11 | 13 |
| dz twin pairs | cohort | 10 | 11 |
| male twins | cohort | 10 | 13 |
| twin sample | cohort | 9 | 10 |
| adult twins | cohort | 7 | 8 |
| monozygotic twin pairs | cohort | 7 | 12 |
| twin samples | cohort | 7 | 8 |
| dizygotic twin pairs | cohort | 6 | 13 |
| twin | cohort | 6 | 7 |
| fraternal twins | cohort | 5 | 6 |
| identical twins | cohort | 5 | 6 |
| twin pair | cohort | 5 | 6 |
| adolescent twins | cohort | 4 | 4 |
| opposite-sex twin pairs | cohort | 4 | 4 |
| twin data | cohort | 4 | 4 |
| twin families | cohort | 4 | 5 |
| affected sibling pairs | cohort | 3 | 4 |
| co-twin | cohort | 3 | 3 |
| dz | cohort | 3 | 5 |
| dz pairs | cohort | 3 | 3 |
| mz | cohort | 3 | 5 |
| same-sex dizygotic twins | cohort | 3 | 3 |
| adolescent twin sample | cohort | 2 | 2 |
| discordant twin pairs | cohort | 2 | 4 |
| discordant twins | cohort | 2 | 3 |
| dzf | cohort | 2 | 2 |
| dz female twins | cohort | 2 | 2 |
| dz male twins | cohort | 2 | 2 |
| dz twin families | cohort | 2 | 3 |
| female twin pairs | cohort | 2 | 2 |
| male twin pairs | cohort | 2 | 2 |
| monozygotic twin | cohort | 2 | 2 |
| mz co-twins | cohort | 2 | 2 |
| mz pairs | cohort | 2 | 2 |
| mz twin | cohort | 2 | 3 |
| mz twin families | cohort | 2 | 5 |
| mz twin pair | cohort | 2 | 2 |
| older twin cohort | cohort | 2 | 2 |
| opposite-sex dz twins | cohort | 2 | 2 |
| same-sex twin pairs | cohort | 2 | 2 |
| twin-family data | cohort | 2 | 2 |
| affected twin | cohort | 1 | 1 |
| australian alcohol and nicotine studies | cohort | 1 | 1 |
| co-twins | cohort | 1 | 1 |
| dz co-twins | cohort | 1 | 1 |
| dzm | cohort | 1 | 1 |
| dz twin pair | cohort | 1 | 1 |
| index twin | cohort | 1 | 1 |
| longitudinal twin sample | cohort | 1 | 1 |
| opposite sex twin pairs | cohort | 1 | 1 |
| same-sex dz twins | cohort | 1 | 1 |
| twin-families | cohort | 1 | 1 |
| twin participants | cohort | 1 | 1 |
| 1847 twin individuals | cohort | — | — |
| 220 twin pairs | cohort | — | — |
| 3554 twins | cohort | — | — |
| 496 pairs | cohort | — | — |
| 8,746 adult twins | cohort | — | — |
| 95 mz | cohort | — | — |
| australian twin family study of aud | cohort | — | — |
| dizygotic twin families | cohort | — | — |
| female dizygotic | cohort | — | — |
| female monozygotic | cohort | — | — |
| female twin participants | cohort | — | — |
| final study sample | cohort | — | — |
| genetically identical co-twin | cohort | — | — |
| large scale twin study | cohort | — | — |
| male dizygotic | cohort | — | — |
| male monozygotic | cohort | — | — |
| male twin cohort | cohort | — | — |
| male twin sample | cohort | — | — |
| monozygotic twin data | cohort | — | — |
| monozygotic twin families | cohort | — | — |
| nonidentical twins | cohort | — | — |
| os dz twins | cohort | — | — |
| population-based sample of male twins | cohort | — | — |
| prospective longitudinal twin design | cohort | — | — |
| published twin studies | cohort | — | — |
| sample of female twins | cohort | — | — |
| stein et al. 2002 twin study | cohort | — | — |
| twin analysis | cohort | — | — |
| twin designs | cohort | — | — |
| twins aged 18 or older | cohort | — | — |
| twins identified from birth records | cohort | — | — |
| twins in male study | cohort | — | — |
| twin studies of schizophrenia | cohort | — | — |
| twin study design | cohort | — | — |