S China J Prev Med ›› 2015, Vol. 41 ›› Issue (3): 213-217.doi: 10.13217/j.scjpm.2015.0213
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TAN Yu-fei1, JIANG Qi2, DUN Zhong-jun2, WANG Ping2, CHEN Zi-hui2, JI Gui-yuan2, TAN Yan-jun2, HUANG Rui2, XU Yan-jun3, XU Xiao-jun3,MA Wen-jun2, ZhANG Yong-hui3