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.
Krumholz HM, Butler J, Miller J, Vaccarino V, Williams CS, Mendes de Leon CF, Seeman TE, Kasl SV, Berkman LF.Krumholz HM, et al. Among authors: berkman lf.Circulation. 1998 Mar 17;97(10):958-64. doi: 10.1161/01.cir.97.10.958.Circulation. 1998.PMID: 9529263
Mendes de Leon CF, Krumholz HM, Vaccarino V, Williams CS, Glass TA, Berkman LF, Kas SV.Mendes de Leon CF, et al. Among authors: berkman lf.J Clin Epidemiol. 1998 Jul;51(7):609-16. doi: 10.1016/s0895-4356(98)00037-7.J Clin Epidemiol. 1998.PMID: 9674668Free article.