Ryou, Bee
Choi, Yoonsun
Hong, Jun Sung
Kim, Kihyun
Article History
First Online: 14 August 2018
Compliance with Ethical Standards
:
: The authors declare that there is no conflict of interest.
: The study was approved by the first and last authors’ Institutional Review Board and met all ethical standards, such as voluntary participation, confidentiality, and limited risk. The second and third author did not participate in the data collection.
: Informed consent was obtained in the study.
: The authors ensured that all ethical standards were met; thus, there are no ethical issues with regards to human participants or animals.