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.
Chia WT, Chen YW, Cheng LY, Lee HS, Chang DM, Sytwu HK.Chia WT, et al. Among authors: chang dm.J Formos Med Assoc. 2008 Mar;107(3):245-52. doi: 10.1016/S0929-6646(08)60143-6.J Formos Med Assoc. 2008.PMID: 18400610Free article.