1. Department of Psychiatry, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.
2. Department of Psychiatry, Hospital Canselor Tuanku Muhriz UKM, Jalan Yaacob Latiff, Bandar Tun Razak, Cheras, Malaysia.
3. Psychiatry Unit, Faculty of Medicine and Defence Health, National Defence University of Malaysia, Kem Sungai Besi, Malaysia.
4. Psychiatry Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Nilai, Malaysia.
5. Psychological Medicine Unit, Faculty of Medicine, Universiti Sultan Zainal Abidin (UniSZA), Jalan Sultan Mahmud, Kuala Terengganu, Malaysia.