ROBERT L. JOHNSON, M.D., is a nationally recognized authority on African American youth and has been featured on numerous news shows, from "20/20" to "The O'Reilly Factor." He is also a member of the planning board for the U.S. Surgeon General's Report on Youth Violence, serves as medical and cultural advisor for "ER," and lectures extensively throughout the country. Also a frequent guest speaker in the media and at workshops, PAULETTE STANFORD, M.D., is the medical director of START, an adolescent-HIV program. She is also the principal investigator for a National Institute of Health research and study on high-risk adolescent behavior. Both authors live in New Jersey, and are professors at the Universiity of Medicine and Dentistry of New Jersey (UMDNJ).