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Kim NR, Sung CO, Han J.Kim NR, et al. Among authors: sung co.J Korean Med Sci. 2003 Jun;18(3):452-4. doi: 10.3346/jkms.2003.18.3.452.J Korean Med Sci. 2003.PMID: 12808340Free PMC article.
Kim CJ, Lee JW, Choi JJ, Choi HY, Park YA, Jeon HK, Sung CO, Song SY, Lee YY, Choi CH, Kim TJ, Lee JH, Kim BG, Bae DS.Kim CJ, et al. Among authors: sung co.Eur J Cancer. 2011 Apr;47(6):918-25. doi: 10.1016/j.ejca.2010.11.007. Epub 2010 Dec 4.Eur J Cancer. 2011.PMID: 21134740
Kim WY, Lee JW, Park YA, Choi JJ, Sung CO, Song SY, Choi CH, Kim TJ, Huh SJ, Kim BG, Bae DS.Kim WY, et al. Among authors: sung co.Gynecol Obstet Invest. 2011;71(1):11-8. doi: 10.1159/000320719. Epub 2010 Dec 15.Gynecol Obstet Invest. 2011.PMID: 21160189
Choi SY, Kim TH, Park HS, Sung CO, Lee JW, Song SY, Kim BG, Bae DS.Choi SY, et al. Among authors: sung co.Int J Clin Oncol. 2011 Oct;16(5):601-4. doi: 10.1007/s10147-010-0174-2. Epub 2011 Jan 6.Int J Clin Oncol. 2011.PMID: 21210172