Peter N Schlegel Editor

Marc Goldstein MD, DSc (Hon), FACS is Professor of Reproductive Medicine and Urology, Weill Cornell Medical College of Cornell University, Director of the Center for Male Reproductive Medicine and Microsurgery, New York Presbyterian Hospital, Weill Cornell Medical Center, New York and Senior Scientist, Center for Biomedical Research, The Population Council, New York, NY, USA. Peter N. Schlegel MD, FACS is Professor and Chairman of Urology and Professor of Reproductive Medicine, Weill Cornell Medical College of Cornell University, New York and Senior Scientist, Center for Biomedical Research, The Population Council, New York, NY, USA.