Funding for this research was provided by:
Boryung Pharmaceuticals, Ltd,
Text and Data Mining valid from 2019-08-19
Received: 2 May 2019
Accepted: 12 August 2019
First Online: 19 August 2019
Ethics approval and consent to participate
: The institutional Review Board at Asan Medical Center approved this study (No. 2015–0194). All patients provided written informed consent prior to enrollment in accordance with the 1975 Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no conflicts of interest.