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.
Walsh CA, Qin L, Tien JC, Young LS, Xu J.Walsh CA, et al. Among authors: xu j.Int J Biol Sci. 2012;8(4):470-85. doi: 10.7150/ijbs.4125. Epub 2012 Mar 7.Int J Biol Sci. 2012.PMID: 22419892Free PMC article.Review.
Wang S, Yuan Y, Liao L, Kuang SQ, Tien JC, O'Malley BW, Xu J.Wang S, et al. Among authors: xu j.Proc Natl Acad Sci U S A. 2009 Jan 6;106(1):151-6. doi: 10.1073/pnas.0808703105. Epub 2008 Dec 24.Proc Natl Acad Sci U S A. 2009.PMID: 19109434Free PMC article.