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.
Salerno DM, Dias VC, Kleiger RE, Tschida VH, Sung RJ, Sami M, Giorgi LV.Salerno DM, et al. Among authors: sung rj.Am J Cardiol. 1989 May 1;63(15):1046-51. doi: 10.1016/0002-9149(89)90076-3.Am J Cardiol. 1989.PMID: 2650517Clinical Trial.
Chang MS, Sung RJ, Tai TY, Lin SL, Liu PH, Chiang BN.Chang MS, et al. Among authors: sung rj.J Am Coll Cardiol. 1983 Nov;2(5):894-903. doi: 10.1016/s0735-1097(83)80237-x.J Am Coll Cardiol. 1983.PMID: 6138376Free article.