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.
Brown AF, Pérez-Stable EJ, Whitaker EE, Posner SF, Alexander M, Gathe J, Washington AE.Brown AF, et al. Among authors: posner sf.J Gen Intern Med. 1999 Nov;14(11):663-9. doi: 10.1046/j.1525-1497.1999.10118.x.J Gen Intern Med. 1999.PMID: 10571714Free PMC article.
Brown JS, Posner SF, Stewart AL.Brown JS, et al. Among authors: posner sf.J Am Geriatr Soc. 1999 Aug;47(8):980-8. doi: 10.1111/j.1532-5415.1999.tb01294.x.J Am Geriatr Soc. 1999.PMID: 10443860