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.
Wainwright RJ, Brennand-Roper DA, Cueni TA, Sowton E, Hilson AJ, Maisey MN.Wainwright RJ, et al. Among authors: maisey mn.Lancet. 1979 Aug 18;2(8138):320-3. doi: 10.1016/s0140-6736(79)90341-6.Lancet. 1979.PMID: 89388