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.
Sung JH, Kim TH, Park HG, Kim MJ, Kim BG, Kim TJ, Bae DS.Sung JH, et al.Obstet Gynecol Sci. 2013 Jan;56(1):41-4. doi: 10.5468/OGS.2013.56.1.41. Epub 2013 Jan 9.Obstet Gynecol Sci. 2013.PMID: 24327979Free PMC article.
Sung JH, Kim SH, Kim YM, Kim JH, Kim MN, Lee HR, Lee HJ, Lee EJ, Choi SJ, Oh SY, Roh CR, Kim JH.Sung JH, et al.J Perinat Med. 2016 Oct 1;44(8):903-911. doi: 10.1515/jpm-2015-0401.J Perinat Med. 2016.PMID: 27149198
Kim SE, Jang HI, Chang KH, Sung JH, Lee J, Lee J, Choi SJ, Oh SY, Roh CR, Kim JH.Kim SE, et al. Among authors: sung jh.Obstet Gynecol Sci. 2017 Jan;60(1):8-17. doi: 10.5468/ogs.2017.60.1.8. Epub 2017 Jan 15.Obstet Gynecol Sci. 2017.PMID: 28217666Free PMC article.