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.
Zamora-Macorra M, de Castro EF, Ávila-Funes JA, Manrique-Espinoza BS, López-Ridaura R, Sosa-Ortiz AL, Shields PL, Del Campo DS.Zamora-Macorra M, et al. Among authors: shields pl.Arch Gerontol Geriatr. 2017 Jan-Feb;68:113-118. doi: 10.1016/j.archger.2016.10.005. Epub 2016 Oct 20.Arch Gerontol Geriatr. 2017.PMID: 27788376
Carbone M, Mells GF, Pells G, Dawwas MF, Newton JL, Heneghan MA, Neuberger JM, Day DB, Ducker SJ; UK PBC Consortium; Sandford RN, Alexander GJ, Jones DE.Carbone M, et al.Gastroenterology. 2013 Mar;144(3):560-569.e7; quiz e13-4. doi: 10.1053/j.gastro.2012.12.005. Epub 2012 Dec 12.Gastroenterology. 2013.PMID: 23246637