Park, Ji Eun
Kim, Ho Sung http://orcid.org/0000-0002-9477-7421
Funding for this research was provided by:
Ministry of Health and Welfare (1720030)
Article History
Received: 11 September 2017
Revised: 29 November 2017
Accepted: 28 December 2017
First Online: 1 February 2018
Compliance with Ethical Standards
:
: Ji Eun Park and Ho Sung Kim declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: The institutional review board of our institute approved this retrospective study, and the requirement to obtain informed consent was waived.