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.
Pototskiĭ II, Grebennikov VA.Pototskiĭ II, et al. Among authors: grebennikov va.Vestn Dermatol Venerol. 1971;45(4):3-8.Vestn Dermatol Venerol. 1971.PMID: 5134500Russian.No abstract available.