Yokoyama K, Takamura M, Watanabe J, Nakamura A, Sato Y, Sekine A, Terai S.
Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Science, Japan.
Department of Gastroenterology, JA Niigata Kouseiren Nagaoka Chuo General Hospital, Japan.
Department of Internal Medicine, Niigata Prefectural Yoshida Hospital, Japan.

Beraud F, Clément G, Lenne X, Biardeau X.
Department of Urology, Claude Huriez Hospital, CHU Lille, Univ Lille, Lille University Hospital, 1 rue Polonovski, 59000, Lille Cedex, France.
Medical Information Department, CHU Lille, Univ Lille, Lille University Hospital, 1 rue Polonovski, 59000, Lille Cedex, France.
Department of Urology, Claude Huriez Hospital, CHU Lille, Univ Lille, Lille University Hospital, 1 rue Polonovski, 59000, Lille Cedex, France.

Quhal F, Al Faddagh A, Silay MS, Straub M, Seitz C.
Department of Urology, Medical University of Vienna, Vienna, Austria.
Department of Urology, King Fahad Specialist Hospital, Dammam, Saudi Arabia.
Department of Urology, Istanbul Biruni University, Istanbul, Turkey.
Department of Urology, Technical University Munich, Munich, Germany.
European Section of Urolithiasis (EULIS), European Association of Urology, Arnhem, The Netherlands.

Ahsan MJ, Taskesen T, Ugwu J, Latif A, Ahsan MZ, Chandran P, Ghali M.
Mercy One, Iowa Heart Center, Des Moines, IA 50314, USA.
Department of Internal Medicine, Creighton University Medical Center, Omaha, NE 68124, USA.
Fatima Memorial Hospital, Lahore, 54000, Pakistan.
Mercy One Medical Center, Des Moines, IA 50314, USA.

Maldonado-Valadez RE, Valdez-Vargas AD, Alvarez JA, Rodea-Montero ER.
Department of Urology, Hospital Regional de Alta Especialidad Del Bajío, Leon, Mexico.
Universidad de Guanajuato, Leon, Mexico.
Department of Research, Hospital Regional de Alta Especialidad Del Bajío, Leon, Mexico.