1. University of New South Wales; National Drug and Alcohol Research Centre (NDARC); Sydney Australia
2. University of Newcastle; School of Psychology; University Drive Callaghan New South Wales Australia 2308
3. Hunter New England Local Health District; Hunter New England Population Health; Locked Bag 10 Wallsend NSW Australia 2287
4. University of Newcastle; School of Medicine and Public Health; Callaghan NSW Australia 2308