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.
Chen SA, Chiang CE, Tai CT, Lee SH, Chang MS.Chen SA, et al. Among authors: chang ms.J Cardiovasc Electrophysiol. 1995 Oct;6(10 Pt 1):852-62. doi: 10.1111/j.1540-8167.1995.tb00360.x.J Cardiovasc Electrophysiol. 1995.PMID: 8542080Review.
Yu WC, Chen SA, Tai CT, Feng AN, Chang MS.Yu WC, et al. Among authors: chang ms.Circulation. 1997 Nov 4;96(9):2992-6. doi: 10.1161/01.cir.96.9.2992.Circulation. 1997.PMID: 9386167