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.
Hsu JT, Chen HM, Chiu DF, Chen JC, Huang CJ, Hwang TL, Jan YY, Chen MF.Hsu JT, et al.J Formos Med Assoc. 2004 Sep;103(9):678-84.J Formos Med Assoc. 2004.PMID: 15361940Clinical Trial.