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Liu WY, Yang JX, Zhang WD.Liu WY, et al. Among authors: zhang wd.Zhonghua Wai Ke Za Zhi. 1994 Jan;32(1):4-7.Zhonghua Wai Ke Za Zhi. 1994.PMID: 8045201Chinese.
Zhang H, Jiao Q, Gong Q, Zhang Y, Zhang W, Hu Z.Zhang H, et al. Among authors: zhang w, zhang y.Front Pharmacol. 2011 Mar 29;2:15. doi: 10.3389/fphar.2011.00015. eCollection 2011.Front Pharmacol. 2011.Retraction in: Front Pharmacol. 2014 Dec 17;5:283. doi: 10.3389/fphar.2014.00283PMID: 21687510Free PMC article.Retracted.
Fang H, Wang Y, Yang T, Ga Y, Zhang Y, Liu R, Zhang W, Zhao J.Fang H, et al. Among authors: zhang w, zhang y.Evid Based Complement Alternat Med. 2013;2013:245357. doi: 10.1155/2013/245357. Epub 2013 Nov 21.Evid Based Complement Alternat Med. 2013.PMID: 24348693Free PMC article.