Sohn, Jong-Hee
Chu, Min-Kyung
Park, Kwang-Yeol
Ahn, Hong-Yup
Cho, Soo-Jin
Article History
Received: 13 May 2018
Accepted: 9 July 2018
First Online: 17 July 2018
Ethics approval and consent to participate
: The study protocol and informed consent form were reviewed and approved by the Institutional Review Board of each hospital (Dongtan Sacred Heart Hospital approval no. 2016-439-I; Chuncheon Sacred Heart Hospital approval no. 2016-131; Kangnam Sacred Heart Hospital approval no. 2016-11-157). Written informed consent was obtained from all participants before enrolling them in the study.
: Not applicable
: The authors declare that they have no competing interests.
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