To best ensure participant privacy and confidentiality, all personal identifiers are maintained at the local collaborating site and re-contact of consenting participants is through that site. Informed consent templates were developed at USC following NIMH guidelines and adapted as necessary for site-specific institutional review board (IRB) approval. A Certificate of Confidentiality from the Department of Health and Human Services also was obtained. With these protections in place, data on individual participant demographics, phenotypes and genotypes as well as biological samples are transmitted to public repositories and databases in accordance with our Distribution Agreement with the NIMH Center for Collaborative Genetic Studies. All research involving human subjects is in compliance with the Code of Ethics of the World Medical Association (Declaration of Helsinki) and, as noted, with the standards established by each author's IRB and the funding agency, NIMH.