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Choi EC, Choi YS, Kim CH, Kim K, Kim KS, Lee JG, Kim GE, Yoon JH.Choi EC, et al. Among authors: choi ys.Yonsei Med J. 2004 Aug 31;45(4):621-8. doi: 10.3349/ymj.2004.45.4.621.Yonsei Med J. 2004.PMID: 15344202Free article.
Lim YC, Lee SY, Kim K, Lee JS, Koo BS, Shin HA, Choi EC.Lim YC, et al. Among authors: choi ec.Oral Oncol. 2005 Nov;41(10):1021-7. doi: 10.1016/j.oraloncology.2005.06.004. Epub 2005 Aug 29.Oral Oncol. 2005.PMID: 16129655
Kim SH, Cho NH, Kim K, Lee JS, Koo BS, Kim JH, Chang JH, Choi EC.Kim SH, et al. Among authors: choi ec.J Surg Oncol. 2006 Mar 15;93(4):330-7. doi: 10.1002/jso.20461.J Surg Oncol. 2006.PMID: 16496371
Lim YC, Lee JS, Koo BS, Kim SH, Kim YH, Choi EC.Lim YC, et al. Among authors: choi ec.Laryngoscope. 2006 Mar;116(3):461-5. doi: 10.1097/01.mlg.0000195366.91395.9b.Laryngoscope. 2006.PMID: 16540910
Keum KC, Chung EJ, Koom WS, Cho JH, Cho SH, Choi EC, Lee CG, Suh CO, Kim GE.Keum KC, et al. Among authors: choi ec.Otolaryngol Head Neck Surg. 2006 Dec;135(6):858-64. doi: 10.1016/j.otohns.2006.02.011.Otolaryngol Head Neck Surg. 2006.PMID: 17141074