1. National Centre for Research into the Prevention of Drug Abuse (Curtin University, GPO Box U1987, Perth, WA 6001, Australia).
2. Centre, while Daly is from the Health Department of Western Australia, Philp is from the Alcohol Advisory Council of the state, and the other coauthors are from Curtin University (Phillips: School of Public Health; Masters and Gahegan: Department of Geographical Information Systems).