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.
Aveyard P, Brown K, Saunders C, Alexander A, Johnstone E, Munafò MR, Murphy M.Aveyard P, et al.Thorax. 2007 Oct;62(10):898-903. doi: 10.1136/thx.2006.071837. Epub 2007 May 4.Thorax. 2007.PMID: 17483139Free PMC article.Clinical Trial.
Murphy M, Aveyard P.Murphy M, et al. Among authors: aveyard p.Lancet. 2005 May 28-Jun 3;365(9474):1831-2. doi: 10.1016/S0140-6736(05)66597-X.Lancet. 2005.PMID: 15924967No abstract available.