Published on in Vol 2 , No 4 (2014) :Oct-Dec
1 National HealthCare Group , Singapore , SG
2 Department of Community Psychiatry , Institute of Mental Health Singapore , Singapore , SG
3 Department of Psychological Medicine , National University HealthCare Systems , Singapore , SG
4 Department of Psychiatry , Singapore General Hospital , Singapore , SG
5 National Addictions Management Service , Institute of Mental Health , Singapore , SG
*these authors contributed equally