GENETIC POLYMORPHISM ASSOCIATED WITH HIGH INTRA-PATIENT VARIABILITY IN TACROLIMUS EXPOSURE AND BIOPSY-PROVEN NEPHROTOXICITY OF TACROLIMUS. Issue 3 (September 2020) - Keem, Hyo Kee; Oh, Jaeseong; Min, Sangil; Chung, Chris Tae young; Mo, Hyejin; Ko, Hyunmin; Han, Ahram; Ha, Jongwon