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.
Chong A, Ha JM, Choi NK, Shin MH.Chong A, et al. Among authors: shin mh.Open Med (Wars). 2019 Jun 17;14:509-515. doi: 10.1515/med-2019-0056. eCollection 2019.Open Med (Wars). 2019.PMID: 31259256Free PMC article.