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.
Kehrberger E, Lanz E, Theiss D, Heintz-Bamberg D.Kehrberger E, et al. Among authors: lanz e.Reg Anaesth. 1985 Oct;8(4):73-7.Reg Anaesth. 1985.PMID: 4070708Clinical Trial.German.