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.
Ackers JP, McMillan A, Street DA, Taylor-Robinson D.Ackers JP, et al.Lancet. 1983 Apr 16;1(8329):880. doi: 10.1016/s0140-6736(83)91425-3.Lancet. 1983.PMID: 6132213No abstract available.