1. Mental Health Services, Prince of Wales Hospital, Randwick, Australia
2. St Vincent's Hospital, Sydney, Australia, Clinical Research Unit for Anxiety Disorders, School of Psychiatry, UNSW at St Vincent's Hospital, Sydney, Australia
3. Post Graduate Medical Institute, Lady Reading Hospital, Peshawar, Pakistan
4. Population Health Research & Neurological/Mental Health Division, The George Institute for International Health, Sydney, Australia,