1. Department of Psychiatry, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000 Cheras, Kuala Lumpur, Malaysia
2. Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, 56000 Cheras, Kuala Lumpur, Malaysia
3. Hospital Bahagia Ulu Kinta, 31300 Tanjung Rambutan, Perak, Kelantan, Malaysia
4. Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, 56000 Cheras, Kuala Lumpur, Malaysia
5. Zwirki I Wiguri 62, Medical University of Warsaw, Poland
6. Department of Psychiatry, Columbia University Medical Center, 1051 Riverside Drive New York, New York 10032, United States