Heterogenous choices were also made by group members regarding the selection of individuals to be included in the analyses. Thornton et al. [2013], Culverhouse et al. [2013], and Yorgov et al. [2013] performed analyses using all pedigree samples with available genotype data as well as subsets of unrelated individuals, Chen et al. [2013] selected a set of unrelated individuals from the sample for genetic analysis, and Huang and Tseng [2013] considered a subset of related and unrelated individuals from the sample.
