Chunk #4 — METHOD — Subjects — GWAS2:

Source

Interrogating the Genetic Determinants of Tourette's Syndrome and Other Tic Disorders Through Genome-Wide Association Studies.

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2,871 EU cases with DSM-5 Tourette syndrome were identified by email/online recruitment combined with validated, web-based phenotypic assessments (12, 13) (N=1,264), or from Tourette syndrome specialty clinics in the US, Canada, and Europe (N=1,607) (Supplemental Methods). All subjects were genotyped at the UCLA Neuroscience Genomics Core (UNGC). After quality control, 2,711 cases were retained for analysis.