About Margaret Weiss Margaret Weiss, M.D., Ph.D., is the director of research for the Division of Child and Adolescent Psychiatry at the Children's and Women's Health Centre in British Columbia. Books by Margaret Weiss ADHD in Adulthood A Guide to Current Theory, Diagnosis, and Treatment by (author) Margaret Weiss, Lily Trokenberg Hechtman & Gabrielle Weiss