1. Center for Drug Research, Universiti Sains Malaysia, Penang, Malaysia
2. School of Social Sciences, Universiti Sains Malaysia, Penang, Malaysia
3. Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
4. Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA
5. Lifestyle Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia