1. School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu 16150, Malaysia
2. State Health Department of Kedah, Alor Setar 05400, Malaysia
3. Advanced Medical and Dental Institute, Universiti Sains Malaysia, Gelugor 11800, Malaysia
4. Hospital Raja Perempuan Zainab II, Kota Bharu 15586, Malaysia
5. School of Applied Psychology, Social Work and Policy, Universiti Utara Malaysia, Sintok 06010, Malaysia