Armand Zini, MD, FRCSC, Professor, Department of Surgery, Division of Urology, St. Mary’s Hospital Center, Montreal, Québec, Canada Ashok Agarwal, PhD, HCLD, Professor, Lerner College of Medicine of Case Western Reserve University, Director, Andrology Center, Director, American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic Foundation, Cleveland, Ohio, USA