作者单位:Istanbul Univ, Istanbul Fac Med, Dept Internal Med, Div Nephrol, Istanbul, Turkey[1]Istanbul Univ, Istanbul Fac Med, Dept Med Biol, Istanbul, Turkey[2]Mem Sisli Hosp, Dept Organ Transplantat, Istanbul, Turkey[3]Istanbul Univ, Istanbul Fac Med, Dept Urol, Istanbul, Turkey[4]