Josephine Norman1
, Nick M Walsh1,5
, Janette Mugavin1
, Mark A Stoové1,2
, Jenny Kelsall1,3
, Kirk Austin1
and Nick Lintzeris1,4 
1
Turning Point Alcohol and Drug Centre, 54 Gertrude St, Fitzroy, Victoria, Australia
2
Centre for Epidemiology and Population Health Research, Macfarlane Burnet Institute for Medical Research and Public Health, 85 Commercial Rd, Melbourne, Victoria, Australia
3
Victorian Drug User Organisation (VIVAIDS), 128 Peel St, North Melbourne, Victoria, Australia
4
Drug Health Services, Sydney South West Area Health Service Page Building 5, Missenden Road, Camperdown, NSW, Australia
5
Department of Epidemiology and Preventive Medicine, Monash University Alfred Campus, 89 Commercial Rd, Melbourne, Victoria 3004, Australia