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Cho SY, Moon KC, Cheong MS, Kwak C, Kim HH, Ku JH.Cho SY, et al. Among authors: kwak c.Yonsei Med J. 2011 Sep;52(5):761-7. doi: 10.3349/ymj.2011.52.5.761.Yonsei Med J. 2011.PMID: 21786440Free PMC article.
Kim Hh, Jo MK, Kwak C, Park SK, Yoo KY, Kang D, Lee C.Kim Hh, et al. Among authors: kwak c.Urology. 2002 Apr;59(4):517-21. doi: 10.1016/s0090-4295(01)01606-5.Urology. 2002.PMID: 11927302
Lee KS, Kim HH, Byun SS, Kwak C, Park K, Ahn H.Lee KS, et al. Among authors: kwak c.Urology. 2002 Sep;60(3):411-4. doi: 10.1016/s0090-4295(02)01759-4.Urology. 2002.PMID: 12350474
Ku JH, Ahn JO, Lee CH, Lee NK, Park YH, Byun SS, Kwak C, Lee SE.Ku JH, et al. Among authors: kwak c.Urology. 2002 Sep;60(3):475-9. doi: 10.1016/s0090-4295(02)01807-1.Urology. 2002.PMID: 12350489
Ku JH, Son H, Kwak C, Lee SE, Lee NK, Park YH.Ku JH, et al. Among authors: kwak c.J Urol. 2002 Oct;168(4 Pt 1):1541-4. doi: 10.1016/S0022-5347(05)64516-8.J Urol. 2002.PMID: 12352455
Lee SE, Ku JH, Kwak C, Kim HH, Paick SH.Lee SE, et al. Among authors: kwak c.J Urol. 2003 Sep;170(3):756-9. doi: 10.1097/01.ju.0000080537.28752.aa.J Urol. 2003.PMID: 12913691