 | Senior Lecturer, School of Public Health, La Trobe University (1990-2005) |
 | Council Member, Australian Consumer's Association (2000-2005) |
 | Board Member, Therapeutic Guidelines Limited (1997-2004) |
 | WHO Fellow - Improving Antibiotic Use and E-Health - Malaysia, Bangladesh, China
and USA (July-Sept, 2000); |
 | Australian Director, AusAID Philippines National Drug Policy Cooperation Project.
(1993-97); |
 | External Drug Evaluator, Therapeutic Goods Administration (1985-91); |
 | Director of Microbiology, The Amalgamated Melbourne and Essendon Hospitals. (1984-87); |
 | Assistant Microbiologist, The Royal Melbourne Hospital, (1976-84); |
 | Medical Clinical Assistant, The Royal Melbourne Hospital, (1975-76); |
 | Trainee in Microbiology, Victorian Hospitals and Charities Commission, (1974-75); |
 | Registrar in Medical Computing, New South Wales Health Department -The Prince Henry and
Prince of Wales Hospital Group, Sydney (1973); |
 | Pathology Registrar (Microbiology), The Prince Henry and Prince of Wales Hospital Group,
Sydney, (1969-72); |
 | Resident Medical Officer, Port Moresby General Hospital, Territory of Papua & New
Guinea, (1968). |