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.
Fernandez-Lopez JA, Subirade I, Fernandez Y, Deltour P, Periquet A, Mitjavila S.Fernandez-Lopez JA, et al.Experientia. 1993 Oct 15;49(10):854-8. doi: 10.1007/BF01952597.Experientia. 1993.PMID: 8224100