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.
Erb TO, Hall JM, Ing RJ, Kanter RJ, Kern FH, Schulman SR, Gan TJ.Erb TO, et al. Among authors: schulman sr.Anesth Analg. 2002 Dec;95(6):1577-81, table of contents. doi: 10.1097/00000539-200212000-00019.Anesth Analg. 2002.PMID: 12456419Clinical Trial.