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.
Wang L, Hsu HY, Li X, Xian CJ.Wang L, et al. Among authors: hsu hy.Biomed Res Int. 2016;2016:2735091. doi: 10.1155/2016/2735091. Epub 2016 Dec 15.Biomed Res Int. 2016.PMID: 28074178Free PMC article.