1. Staff Specialist Psychiatrist, Newcastle Mental Health Service, Newcastle, NSW, and; Conjoint Senior Lecturer, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
2. Senior Lecturer, Department of Psychiatry, University of Colombo, Colombo, Sri Lanka; Honorary Consultant Psychiatrist, University Psychiatry Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka; Director of the Centre for Combating Tobacco, University of Colombo, Colombo, Sri Lanka
3. Associate Professor, Discipline of Psychiatry, School of Medicine and Public Health, University of Newcastle Callaghan, NSW, and; Staff Specialist Psychiatrist, Hunter New England Local Health District, Waratah, NSW, Australia