Cheol Kwak

Prognostic significance of the nadir prostate specific antigen level after hormone therapy for prostate cancer.

Sang Eun Lee, C. Kwak, S. Jeong, 2002, The Journal of urology.

Prevalence and epidemiologic characteristics of urolithiasis in Seoul, Korea.

Daehee Kang, D. Kang, K. Yoo, 2002, Urology.

Impact of transurethral resection of bladder tumor: analysis of cystectomy specimens to evaluate for residual tumor.

Sang Eun Lee, Ja Hyeon Ku, C. Kwak, 2004, Urology.