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.
Percudani M, Barbui C, Tansella M.Percudani M, et al.Pharmacoeconomics. 2004;22(11):701-18. doi: 10.2165/00019053-200422110-00002.Pharmacoeconomics. 2004.PMID: 15250749Review.