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.
Li X, Xu W, Zhang L, Zu Y, Li Y, Yang Y, Xiang Y, Xiang Y, Chen L, Liu W, Chen L, Xu KF.Li X, et al. Among authors: xu w, xu kf.Orphanet J Rare Dis. 2020 Mar 16;15(1):72. doi: 10.1186/s13023-020-1344-6.Orphanet J Rare Dis. 2020.PMID: 32178705Free PMC article.Clinical Trial.
Xu KF, Wang L, Tian XL, Gui YS, Peng M, Cai BQ, Zhu YJ.Xu KF, et al.Chin Med Sci J. 2010 Sep;25(3):140-5. doi: 10.1016/s1001-9294(10)60038-7.Chin Med Sci J. 2010.PMID: 21180274
Zhan Y, Shen L, Xu W, Wu X, Zhang W, Wang J, Li X, Yang Y, Tian X, Xu KF.Zhan Y, et al. Among authors: xu w, xu kf.Orphanet J Rare Dis. 2018 Feb 20;13(1):34. doi: 10.1186/s13023-018-0775-9.Orphanet J Rare Dis. 2018.PMID: 29458386Free PMC article.