Lee, Kyeong Joo
Lee, Sang Min
Article History
First Online: 10 June 2020
Compliance with Ethical Standards
:
: The author declares that she has no conflict of interest.
: This study was approved by the Institutional Review Board (IRB) of Korea University. Informed consent was obtained, and the participants were informed that they could choose to not answer the survey. If they chose not to answer, then the survey was terminated automatically. Each participant received a 5000-won gift card as a reward.