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.
Martin-Facklam M, Kostrzewa M, Martin P, Haefeli WE.Martin-Facklam M, et al. Among authors: haefeli we.Br J Clin Pharmacol. 2004 Jan;57(1):80-5. doi: 10.1046/j.1365-2125.2003.01954.x.Br J Clin Pharmacol. 2004.PMID: 14678344Free PMC article.Clinical Trial.