Published on in Vol 7, No 6 (2018): June
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/9740, first published
.
1 National Addictions Management Service, Institute of Mental Health, Singapore, Singapore
2 Department of Developmental Psychiatry, Institute of Mental Health, Singapore, Singapore
3 Family Medicine and Primary Care, Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore, Singapore