INTRODUCTIONThe considerable morbid

INTRODUCTION
The considerable morbidity and mortality that occurs in
the global population, as a direct result of cigarette
smoking, is indisputable. Indeed the US Department of
Health and Human Services (1990) asserts that smoking
represents the most extensively documented cause of
disease ever investigated in the history of biomedical
research. From a local perspective, English et al. (1995)
cite tobacco smoking as the largest single preventable
cause of death and disease in contemporary Australia.