A RANDOMISED CONTROLLED TRIAL OF CONTINGENCY MANAGEMENT TO INCREASE HEPATITIS B VACCINATION UPTAKE AND COMPLETION AMONG PEOPLE WHO INJECT DRUGS IN AUSTRALIA Topp, L ; Day, C ; Wand, H ; Deacon, R ; Van Beek, I ; Haber, P ; Shanahan, M ; Rodgers, C ; Maher, LDrug And Alcohol Review, 2011, Vol.30, pp.86-87 type:abstract