Douglas Carrell received his Ph.D. degree in reproductive physiology from the University of Utah in 1995, after receiving a M.S. degree in cellular and developmental biology from Brigham Young University. Dr. Carrell has worked in the area of research and treatment of human infertility for 30 years. Dr. Carrell is the clinical laboratory director of the In Vitro Fertilization (IVF) and Andrology laboratories at the University of Utah, and also directs a number of post-doctoral fellows, Ph.D. graduate students, and research personnel. Dr. Carrell is an international leader in the field of research into genetic aspects of male infertility and early embryogenesis. He has authored more than 150 research papers and book chapters, and has edited 5 medical books related to infertility. Dr. Carrell is a frequent invited speaker at national and international medical and research meetings, and is the Co Editor-in-Chief of Andrology.