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.
Lange RA, Hillis LD.Lange RA, et al. Among authors: hillis ld.Circulation. 2003 May 6;107(17):e111-3. doi: 10.1161/01.CIR.0000070982.94049.A2.Circulation. 2003.PMID: 12732596No abstract available.
Lange RA, Hillis LD.Lange RA, et al. Among authors: hillis ld.Am J Med Sci. 1988 Aug;296(2):143-52. doi: 10.1097/00000441-198808000-00016.Am J Med Sci. 1988.PMID: 3041833Review.