Funding for this research was provided by:
SMG-SNU Boramae Medical Center (03-2018-7)
Article History
Received: 14 November 2019
Accepted: 1 May 2020
First Online: 8 May 2020
Ethics approval and consent to participate
: The Institutional Review Board of SMG-SNU Boramae Medical Center reviewed the protocol and determined that this study was exempted from the approval of the IRB because this study aimed to investigate the effectiveness of instructional techniques in established educational settings. In addition, the requirement of informed consent was waived by the board.
: Not applicable.
: The authors declare that they have no competing interests.