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Tsai HW, Wang CC, Wei HJ, Lai FC, Hsieh SR, Chang Y.Tsai HW, et al. Among authors: chang y.J Chin Med Assoc. 2003 Mar;66(3):173-6.J Chin Med Assoc. 2003.PMID: 12779038
Chang Y, Liang HC, Wei HJ, Chu CP, Sung HW.Chang Y, et al.J Biomed Mater Res A. 2004 May 1;69(2):323-33. doi: 10.1002/jbm.a.30003.J Biomed Mater Res A. 2004.PMID: 15058005