Yeoh, Hyunjung
Lee, Ji Young http://orcid.org/0000-0003-1181-8070
Lee, Young-Jun
Park, Dong Woo
Kim, Tae Yoon
Ahn, Ga Young
Bae, Sang-Cheol
Kim, Young Seo
Kim, Hyun Young
Kim, Chun K.
Kim, Ji Young
Kim, Haejin
Han, Ji Won
Article History
Received: 31 August 2018
Accepted: 1 November 2018
First Online: 10 November 2018
Compliance with ethical standards
:
: This study was funded by a grant from the Korean Health Technology R&D Project, Ministry of Health and Welfare, Republic of Korea (Grant no. HI09C1379 [A092077]).
: 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 research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.
: For this type of retrospective study formal consent is not required.