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Chen JQ, Zhai JJ, Gu JJ, Shao YF, Liu YM, Yuan J, Zhou SY.Chen JQ, et al. Among authors: zhai jj.Zhonghua Yan Ke Za Zhi. 2012 Jun;48(6):537-41.Zhonghua Yan Ke Za Zhi. 2012.PMID: 22943810Chinese.