From the School of Population Health, University of Queensland, Brisbane, Australia (TC and AD); the Epidemiology Services Unit, Health Information Branch, Queensland Health, Brisbane, Australia (TC, TII, and CM); the Viertel Center for Research in Cancer Control, Queensland Cancer Fund, Brisbane, Australia (PDB); Oxfam, Oxford (SD) Tropical Public Health Unit, Queensland Health, Cairns, Australi(2005-09-01時点)