Author Profiles Michael Foley, MD, Chief Medical Officer, Scottsdale, Arizona, and Clinical Professor of Obstetrics and Gynecology, University of Arizona, Tucson, Arizona. Dr. Foley is also head of Phoenix Perinatal Associates, one of the largest perinatal practices and busiest obstetric critical care units in the world.Thomas H. Strong, Jr., MD, Associate Director, Maternal Fetal Medicine, Phoenix Perinatal Associates; Associate Clinical Professor of Obstetrics and Gynecology, University of Arizona School of Medicine, Tucson, Arizona, and Assistant Clinical Professor of Obstetrics and Gynecology, University of California, San Francisco.Thomas J. Garite, MD, Professor Emeritus, Obstetrics… and Gynecology, University of California, Irvine. Dr. Garite is also Editor-in-Chief of theAmerican Journal of Obstetrics and Gynecology.