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}}</ref> prevention of HIV among injecting drug users, brief interventions for problem drinkers, prevention of alcohol problems, treatment of drug users, drug policy reform.<ref>{{REFweb | last= | first= | date= | title=Dr Alex Wodak | url=http://www.stvincents.com.au/index.php?option=com_content&task=view&id=469&Itemid=516 | publisher=St Vincent’s Hospital Sydney | work= | accessdate=}}</ref>