1. Department of Anthropology; George Washington University; Washington, D.C.
2. University of KwaZulu-Natal; Pietermaritzburg; South Africa
3. Autism Institute; College of Medicine; Florida State University; Tallahassee; Florida
4. Department of Anthropology; University of California-Los Angeles; Los Angeles; California
5. Social & Scientific Systems, Inc.; Durham; North Carolina
6. Sequoia Foundation; La Jolla; California