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.
Lin TC, Ger LP, Pergolizzi JV Jr, Raffa RB, Wang JO, Ho ST.Lin TC, et al. Among authors: raffa rb.J Formos Med Assoc. 2017 Apr;116(4):257-265. doi: 10.1016/j.jfma.2016.10.015. Epub 2016 Dec 23.J Formos Med Assoc. 2017.PMID: 28024664Free article.