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.
Choi JY, Chang JH, Chang JW, Ha Y, Park YG, Chung SS.Choi JY, et al. Among authors: chang jh, chang jw.Yonsei Med J. 2003 Aug 30;44(4):602-7. doi: 10.3349/ymj.2003.44.4.602.Yonsei Med J. 2003.PMID: 12950114Free article.
Lee JW, Kim DS, Shim KW, Chang JH, Huh SK, Park YG, Choi JU.Lee JW, et al. Among authors: chang jh.Childs Nerv Syst. 2008 Mar;24(3):321-7. doi: 10.1007/s00381-007-0465-8. Epub 2007 Sep 18.Childs Nerv Syst. 2008.PMID: 17876588