Funding for this research was provided by:
National Research Foundation of Korea (2017R1A2B4012636)
Korea Health Industry Development Institute (HI14C3331)
Received: 26 March 2020
Accepted: 24 June 2020
First Online: 13 July 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of all participating institutions, and all participants gave informed consent to the use of clinical data for research purposes.
: Not applicable.
: The authors declare that they have no conflict of interest.