作者单位:Haseki Res & Training Hosp, Dept Urol, Istanbul, Turkey[1]Sisli Etfal Res & Training Hosp, Dept Urol, Istanbul, Turkey[2]Ankara Univ, Fac Med, Dept Pharmacol, TR-06100 Ankara, Turkey[3]Baskent Univ, Fac Med, Dept Urol, TR-06490 Ankara, Turkey[4]