Respiratory Physiologist, 40 years of clinical and academic work in Nicotine Addiction and Smoking Cessation. Started the first "Smokers' Clinic" at St. Vincents Hospital, Sydney in 1979. Started and still Editor in Chief of the Journal of Smoking Cessation now published by Cambridge and Hindawi Press. Invited speaker nationally and internationally on Nicotine Addiction, most recently live in Belgium and The Netherland, September 2022 and webinar lectures in Prague, Czech Republic and Paris, France . Have publications and text books, monographs on management of nicotine addiction.