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.
Ho CS, Ho RC, Wilder-Smith EP.Ho CS, et al.Lancet. 2014 Feb 15;383(9917):668. doi: 10.1016/S0140-6736(14)60127-6.Lancet. 2014.PMID: 24529469No abstract available.