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.
Principi N, Esposito S.Principi N, et al. Among authors: esposito s.Drug Saf. 1999 Jan;20(1):25-41. doi: 10.2165/00002018-199920010-00004.Drug Saf. 1999.PMID: 9935275Review.