Harley Rotbart, MD, is a nationally renowned infectious diseases specialist, pediatrician, parenting expert, speaker, and educator. He is professor and vice chair emeritus of pediatrics at the University of Colorado School of Medicine and Children's Hospital Colorado. He is the author of numerous medical and scientific publications, and books for lay audiences including No Regrets Parenting, 940 Saturdays, and Miracles We Have Seen. Dr. Rotbart was named to Best Doctors in America for 18 consecutive years, as well as receiving numerous other national and local awards for research, teaching, and clinical work. He served on the advisory boards of Parents magazine and Parents.com, and is a consultant to national and local media outlets. He has been a regular contributor to Parents magazine and the New York Times.