J. Thomas Fitch, MD is a retired paediatrician in Texas who practised for over 40 years. He's especially interested in helping parents of adolescents understand how they can help their children avoid risk-taking behaviours. Dr. Fitch previously served as a clinical professor in the department of paediatrics at the University of Texas Health Sciences Center in San Antonio, Texas, and was the president of the Texas Pediatric Society. His is a content editor for Complete Book of Baby and Child Care, a member of Focus on the Family's Physician Resource Council, and has served as the chairman of The Medical Institute's board of directors. David Davis serves as Focus on the Family's Medical Research Analyst, working to provide the ministry with the most accurate and up-to-date medical and health-related content available. David has contributed to a number of Focus books including the Complete Guide to Family Health, Nutrition & Fitness, the Complete Guide to Caring for Aging Loved Ones, and the revised version of the Complete Guide to Baby and Child Care.