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.
Janković SM, Milovanović DR, Janković SV.Janković SM, et al. Among authors: jankovic sv.Croat Med J. 1999 Mar;40(1):67-70.Croat Med J. 1999.PMID: 9933898Free article.