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