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.
Wilt TJ, Ishani A, Stark G, MacDonald R, Lau J, Mulrow C.Wilt TJ, et al.JAMA. 1998 Nov 11;280(18):1604-9. doi: 10.1001/jama.280.18.1604.JAMA. 1998.PMID: 9820264
Ishani A, MacDonald R, Nelson D, Rutks I, Wilt TJ.Ishani A, et al. Among authors: wilt tj.Am J Med. 2000 Dec 1;109(8):654-64. doi: 10.1016/s0002-9343(00)00604-5.Am J Med. 2000.PMID: 11099686Review.