An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Xu L, Hu F, Zhu H, Liu X, Shi L, Li Y, Zhong H, Su Y.Xu L, et al.Clin Exp Immunol. 2018 Apr;192(1):95-103. doi: 10.1111/cei.13082. Epub 2017 Dec 11.Clin Exp Immunol. 2018.PMID: 29148078Free PMC article.
Li Y, Wang Y, Xu L, Liu L.Li Y, et al. Among authors: xu l.Zhonghua Yan Ke Za Zhi. 1999 Jan;35(1):47-9, 4.Zhonghua Yan Ke Za Zhi. 1999.PMID: 11835775Chinese.
Xu L, Li Y, Zheng Y, Jonas JB.Xu L, et al.Br J Ophthalmol. 2006 Sep;90(9):1087-90. doi: 10.1136/bjo.2006.096123. Epub 2006 Jun 14.Br J Ophthalmol. 2006.PMID: 16774957Free PMC article.
Li Y, Xu L, Olsen BR.Li Y, et al. Among authors: xu l.Osteoarthritis Cartilage. 2007 Oct;15(10):1101-5. doi: 10.1016/j.joca.2007.04.013. Epub 2007 Jun 14.Osteoarthritis Cartilage. 2007.PMID: 17572112Free PMC article.Review.No abstract available.
Wang W, Zhang S, Li Y, Xu L, Zhou J, Zhen Y.Wang W, et al. Among authors: xu l.Sci China C Life Sci. 2000 Aug;43(4):433-41. doi: 10.1007/BF02879309.Sci China C Life Sci. 2000.PMID: 18726348
Zhou H, Gao Y, Xu L, Li M, Li Q, Li Y, Liang X, Luo H, Kan B, Xu J, Shao Z.Zhou H, et al. Among authors: xu l, xu j.Epidemiol Infect. 2012 Jul;140(7):1296-303. doi: 10.1017/S0950268811001865. Epub 2011 Sep 20.Epidemiol Infect. 2012.PMID: 21929839