Published on in Vol 20, No 11 (2018): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11152, first published
.

1 Department of Psychiatry, Yonsei University College of Medicine, Gangnam Severance Hospital , Seoul , KR
2 Institute of Behavioral Science in Medicine, Yonsei University College of Medicine , Seoul , KR
3 Department of Interaction Science, Sungkyunkwan University , Seoul , KR