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.
Forssell G, Orinius E.Forssell G, et al. Among authors: orinius e.Acta Med Scand. 1981;210(4):309-11. doi: 10.1111/j.0954-6820.1981.tb09821.x.Acta Med Scand. 1981.PMID: 7315530