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Hsu KL, Cheng YF, Ko SF.Hsu KL, et al. Among authors: ko sf.Hepatogastroenterology. 1997 May-Jun;44(15):803-7.Hepatogastroenterology. 1997.PMID: 9222694
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Cheng Y, Kan Z, Chen C, Huang T, Chen T, Yang B, Ko S, Lee T.Cheng Y, et al.World J Surg. 2000 Jul;24(7):844-50; discussion 850. doi: 10.1007/s002680010135.World J Surg. 2000.PMID: 10833253Clinical Trial.
Tsai CC, Chung JH, Ko SF, Liu PM, Su CT, Li WC, Liang CD, Huang LT, Huang CB, Tiao MM.Tsai CC, et al. Among authors: ko sf.Acta Paediatr Taiwan. 2003 Sep-Oct;44(5):282-6.Acta Paediatr Taiwan. 2003.PMID: 14964984
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Tiao MM, Huang LT, Liang CD, Ko SF.Tiao MM, et al. Among authors: ko sf.J Formos Med Assoc. 2006 Mar;105(3):252-5. doi: 10.1016/S0929-6646(09)60315-6.J Formos Med Assoc. 2006.PMID: 16520844Free article.