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Zhi-qiang W, Xiao-hong D, Bai-zhi Y, Xiu-hong W.Zhi-qiang W, et al.Chin Med Sci J. 2010 Dec;25(4):243-5. doi: 10.1016/s1001-9294(11)60010-2.Chin Med Sci J. 2010.PMID: 21232186No abstract available.