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Lu DY, Li Y, Bi ZW, Yu HM, Li XJ.Lu DY, et al. Among authors: li y, li xj.Anat Histol Embryol. 2008 Feb;37(1):1-8. doi: 10.1111/j.1439-0264.2007.00827.x. Epub 2007 Dec 7.Anat Histol Embryol. 2008.PMID: 18070239
Gao R, Sun J, Zhang L, Chen S, Dong W, Yu H, Han B, Tan M, Li X.Gao R, et al.Pain Physician. 2021 Nov;24(7):E955-E971.Pain Physician. 2021.PMID: 34704707Free article.
Xue YL, Wang ZF, Zhong DG, Cui X, Li XJ, Ma XJ, Wang LN, Zhu K, Sun AM.Xue YL, et al. Among authors: li xj.Artif Cells Blood Substit Immobil Biotechnol. 2000 Jul;28(4):337-45. doi: 10.3109/10731190009119363.Artif Cells Blood Substit Immobil Biotechnol. 2000.PMID: 10928703