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Tian XR, Tang HF, Li YS, Lin HW, Chen XL, Ma N, Yao MN, Zhang PH.Tian XR, et al. Among authors: chen xl.Mar Drugs. 2011 Jan 28;9(2):162-183. doi: 10.3390/md9020162.Mar Drugs. 2011.PMID: 21566793Free PMC article.
Li XB, Yang ZX, Yang L, Chen XL, Zhang K, Yang Q, Wu YM, Liu SB, Tao KS, Zhao MG.Li XB, et al. Among authors: chen xl.CNS Neurosci Ther. 2012 Nov;18(11):927-33. doi: 10.1111/cns.12003. Epub 2012 Sep 13.CNS Neurosci Ther. 2012.PMID: 22970936Free PMC article.