Goonewardena S, Jayarajah U, Kuruppu SN, Fernando MH.
Department of Urology, National Hospital of Sri Lanka, Colombo, Sri Lanka.

Pan J, Liang E, Cai Q, Zhang D, Wang J, Feng Y, Yang X, Yang Y, Tian W, Quan C, Han R, Niu Y, Chen Y, Xin Z.
Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.
Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China.
Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
Andrology Center, Peking University First Hospital, Peking University, Beijing, China.

Shendy WS, Elsoghier OM, El Semary MM, Ahmed AA, Ali AF, Saber-Khalaf M.
Faculty of physical therapy, Cairo University, Giza, Egypt.
Department of Urology, South Valley University, Qena, Egypt.
Faculty of physical therapy, South Valley University, Qena, Egypt.
Urology Department, Faculty of Medicine, Sohag University, Sohag, Egypt.

Michel KF, Patel HD, Ziemba JB.
Division of Urology, Hospital of the University of Pennsylvania, Perelman School of Medicine, University of Pennsylvania, 3 West Perelman Center for Advanced Medicine, 3400 Civic Center Boulevard, Philadelphia, PA, USA.
Department of Urology, Loyola University Medical Center, Maywood, IL, USA.
Division of Urology, Hospital of the University of Pennsylvania, Perelman School of Medicine, University of Pennsylvania, 3 West Perelman Center for Advanced Medicine, 3400 Civic Center Boulevard, Philadelphia, PA, USA.

Romeu G, Marzullo-Zucchet LJ, Díaz J, Villarroya S, Budía A, Ordaz DG, Caballer V, Vivas D.
Urology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain. Urology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
Centro de Investigación en Economía y Gestión de la Salud (CIEGS), Universitat Politècnica de València, Valencia, Spain.