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.
Kweon SS, Lee YH, Shin MH, Choi JS, Rhee JA, Choi SW, Ryu SY, Kim BH, Nam HS, Jeong SK, Park KS.Kweon SS, et al. Among authors: choi js, choi sw.Circ J. 2012;76(8):2041-7. doi: 10.1253/circj.cj-11-1353. Epub 2012 May 29.Circ J. 2012.PMID: 22664416Free article.Clinical Trial.
Choi SW, Lee YH, Kweon SS, Song HR, Ahn HR, Rhee JA, Choi JS, Shin MH.Choi SW, et al. Among authors: choi js.J Korean Med Sci. 2012 Oct;27(10):1196-201. doi: 10.3346/jkms.2012.27.10.1196. Epub 2012 Oct 2.J Korean Med Sci. 2012.PMID: 23091317Free PMC article.