Alp BF, Malkoc E, Demirer Z, Guragac A, Turker T, Altayli E, Ozcan A, Uysal B, Topal T, Akgul EO, Yildirim I, Guven A
Department of Urology, Gulhane Military Medical Faculty, Etlik, Ankara, Turkey

Ferroni MC, Turner RM 2nd, Semins MJ
University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA

Hussein A, Anwar A, Abol-Nasr M, Ramadan E, Shaaban A
Department of Urology, Minia University , El-Minia, Egypt

Li X, Long Q, Cheng X, He D
Department of Urology, First Affiliated Hospital, Medical College, Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, Shaanxi Province, 710061, China

Ngee-Ming G, Tamsin D, Rai BP, Somani BK
Department of Urology, University Hospitals Southampton NHS Trust, Southampton, UK