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.
Niemi KM, Anton-Lamprecht I, Virtanen I, Suomalainen RJ, Somer T, Linke RP.Niemi KM, et al. Among authors: suomalainen rj.Arch Dermatol. 1993 Jun;129(6):757-62.Arch Dermatol. 1993.PMID: 8507080