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.
Kim JY, Oh YJ, Lee YK, Kwak YL.Kim JY, et al. Among authors: kwak yl.Yonsei Med J. 2006 Jun 30;47(3):440-2. doi: 10.3349/ymj.2006.47.3.440.Yonsei Med J. 2006.PMID: 16807998Free PMC article.
Oh YJ, Kim JY, Shim JK, Yoo KJ, Lee JW, Kwak YL.Oh YJ, et al. Among authors: kwak yl.Circ J. 2008 Aug;72(8):1259-64. doi: 10.1253/circj.72.1259.Circ J. 2008.PMID: 18654010Free article.Clinical Trial.
Song JW, Jo YY, Jun NH, Kim HK, Kwak YL.Song JW, et al. Among authors: kwak yl.Korean J Anesthesiol. 2011 Mar;60(3):185-91. doi: 10.4097/kjae.2011.60.3.185. Epub 2011 Mar 30.Korean J Anesthesiol. 2011.PMID: 21490820Free PMC article.