Addiction Expert Finds Western Province Has A Very Different Take On Drug Abuse Than Ontario VANCOUVER | It's been more than a year and a half since Dr. David Marsh left Ontario to become a key player in the development of strategies to handle Vancouver's drug abuse problem, but it didn't take him that long to discover the importance of addiction medicine in British Columbia. His title is simple: "physician leader of addiction medicine" with Vancouver Coastal Health, the local regional health authority, and Providence Health Care, the umbrella organization for the city's Catholic hospitals, including St. Paul's. His duties, however, are not. [continues 882 words]