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.
Lopez-Herce J, Dorao P, Ruza F, de la Oliva P.Lopez-Herce J, et al.Crit Care Med. 1988 Sep;16(9):914. doi: 10.1097/00003246-198809000-00022.Crit Care Med. 1988.PMID: 3402238No abstract available.