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.
Barza M, Ioannidis JP, Cappelleri JC, Lau J.Barza M, et al. Among authors: lau j.BMJ. 1996 Feb 10;312(7027):338-45. doi: 10.1136/bmj.312.7027.338.BMJ. 1996.PMID: 8611830Free PMC article.
Cappelleri JC, Ioannidis JP, Schmid CH, de Ferranti SD, Aubert M, Chalmers TC, Lau J.Cappelleri JC, et al. Among authors: lau j.JAMA. 1996 Oct 23-30;276(16):1332-8.JAMA. 1996.PMID: 8861993Review.