Funding for this research was provided by:
Korea Health Industry Development Institute (HI14C3319)
National Research Foundation of Korea (NRF-2018R1A6A1A03023718)
Yonsei University (2018-22-0022, Yonsei Frontier Lab)
Article History
Received: 24 October 2018
Accepted: 26 December 2018
First Online: 9 May 2019
Conflict of interest
: The authors declare that they have no conflict of interest.