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Chen X, Yan CC, Luo C, Ji W, Zhang Y, Dai Q.Chen X, et al.Sci Rep. 2015 Jun 10;5:11338. doi: 10.1038/srep11338.Sci Rep. 2015.PMID: 26061969Free PMC article.
Chen X, Liu MX, Cui QH, Yan GY.Chen X, et al.PLoS One. 2012;7(8):e43425. doi: 10.1371/journal.pone.0043425. Epub 2012 Aug 24.PLoS One. 2012.PMID: 22937049Free PMC article.
Chen X, Yan CC, Zhang X, Li Z, Deng L, Zhang Y, Dai Q.Chen X, et al.Sci Rep. 2015 Sep 8;5:13877. doi: 10.1038/srep13877.Sci Rep. 2015.PMID: 26347258Free PMC article.