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.
Chan TC, Hung IF, Chan KH, Li CP, Li PT, Luk JK, Chu LW, Chan FH.Chan TC, et al. Among authors: chan kh, chan fh.J Am Med Dir Assoc. 2014 Aug;15(8):607.e5-12. doi: 10.1016/j.jamda.2014.05.002. Epub 2014 Jun 21.J Am Med Dir Assoc. 2014.PMID: 24957950Clinical Trial.