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Lv Y, Xia JY, Chen JY, Zhao H, Yan HC, Yang HS, Li Q, Fan YX, Guo KJ, Chen XY.Lv Y, et al. Among authors: guo kj.BMC Musculoskelet Disord. 2014 Nov 6;15:370. doi: 10.1186/1471-2474-15-370.BMC Musculoskelet Disord. 2014.PMID: 25377946Free PMC article.