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.
Udvarhelyi IS, Gatsonis C, Epstein AM, Pashos CL, Newhouse JP, McNeil BJ.Udvarhelyi IS, et al. Among authors: pashos cl.JAMA. 1992 Nov 11;268(18):2530-6.JAMA. 1992.PMID: 1404820
Ayanian JZ, Udvarhelyi IS, Gatsonis CA, Pashos CL, Epstein AM.Ayanian JZ, et al. Among authors: pashos cl.JAMA. 1993 May 26;269(20):2642-6.JAMA. 1993.PMID: 8487447