Published on in Vol 21, No 9 (2019): September
1 Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
2 College of Business, Korea Advanced Institute of Science and Technology, Seoul, Republic of Korea
3 Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea
4 Swallaby Co, Ltd, Seoul, Republic of Korea
5 Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
6 College of Nursing, Gachon University, Incheon, Republic of Korea
*these authors contributed equally