The Family Investigation of Nephropathy and Diabetes (FIND) is a multicenter study designed to identify genetic determinants of diabetic kidney disease. Study subjects were recruited from eleven centers and in many ethnic groups throughout the United States. A genome-wide association stu...

The PUWMa GWAS of ADHD is a multi-site collaboration initiated to conduct a family-based association study from existing research samples. The source sample of ADHD families was ascertained at Massachusetts General Hospital (MGH, N=309 trios), Washington University at St. Louis (WASH-U, N...

This sample represents a collection of cases across a range of sites. All of these samples were ascertained for ADHD with most meeting criteria for combined type ADHD. The collection sites span Europe and America. Further details on the source and inclusion and exclusion information can be found ...