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Li HS, Dai YF, Huang HL, Feng XL, Sun YF, Niu Y, Cheng J, Zhang LY, Li LY, Chen B, Zheng YX.Li HS, et al. Among authors: cheng j.Zhonghua Yu Fang Yi Xue Za Zhi. 2006 May;40(3):173-6.Zhonghua Yu Fang Yi Xue Za Zhi. 2006.PMID: 16836882Chinese.