Ahn JS, Holt S, May P, Harper JD.
Department of Urology, University of Washington, Seattle, Washington.

Cevik B, Tuncer M, Erkal KH, Eryildirim B, Sarica K.
Dr. Lütfi Kirdar Training and Research Hospital, Anesthesiology and Reanimation Clinic, Şemsi Denizer caddesi, 34865, Cevizli-Kartal, Istanbul, Turkey.

Kalyvianakis D, Hatzichristou D.
Center for Sexual and Reproductive Health, Aristotle University of Thessaloniki Greece, Thessaloniki, Greece.

Durmuş G, Kalyoncuoğlu M, Karataş MB, Çanga Y, Öztürk S, Özal E, Çakıllı Y, Kırış T, Güngör B, Alper AT, Can MM, Bolca O.
Department of Cardiology, Haseki Training and Research Hospital, İstanbul, Turkey.

Schregel C, John H, Randazzo M, Keller I.
Department of Urology, Kantonsspital Winterthur, Brauerstrasse 15, 8401, Winterthur, Switzerland.