He is a Clinical Professor of Medicine at the University of California Los Angeles, and has treated hundreds of victims of fibromyalgia. He is the author of The Lupus Book and co-author of All About Osteoarthritis, both by Oxford. Janice Wallace is a freelance medical writer. They live in Los Angeles.Daniel J. Wallace currently resides in Los Angeles, in the state of California. Daniel J. Wallace was born in 1949 and has an academic affiliation as follows - David Geffen School of Medicine University of California, Los Angeles.