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.
Parr AF, Digenis GA, Sandefer EP, Ghebre-Sellassie I, Iyer U, Nesbitt RU, Scheinthal BM.Parr AF, et al. Among authors: digenis ga.Pharm Res. 1990 Mar;7(3):264-9. doi: 10.1023/a:1015826229323.Pharm Res. 1990.PMID: 2339100