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.
Smeitink JA, Fischer JC, Ruitenbeek W, Duran M, Hofkamp M, Bentlage HA, Poll-The BT.Smeitink JA, et al. Among authors: bentlage ha.Lancet. 1993 Jun 19;341(8860):1601. doi: 10.1016/0140-6736(93)90741-x.Lancet. 1993.PMID: 8099679No abstract available.