Park, Suyeon
Song, Eyun
Oh, Hye-Seon
Kim, Mijin
Jeon, Min Ji
Kim, Won Gu
Kim, Tae Yong
Shong, Young Kee
Kim, Doo Man
Kim, Won Bae http://orcid.org/0000-0003-4544-1750
Article History
Received: 21 March 2019
Accepted: 15 June 2019
First Online: 24 June 2019
Compliance with ethical standards
:
: The authors 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 Review Board of Asan Medical Center, Seoul, Korea, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.