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\bibitem{Grebely_etal2009} Grebely, J., Raffa, J. D., Knight, E., Storms, M., Tossonian, H. K., Duncan, F., et al. (2009). Factors influencing willingness for and uptake of treatment for hepatitis C virus (HCV) infection in illicit drug users in urban care settings in British Columbia, Canada : the HI-Lo Study. In \textit{1st International Symposium on Hepatitis care in substance users} (18). Zurich: University of New South Wales (UNSW), National Centre in HIV Epidemiology and Clinical Research; University of Waterloo, Department of Statistics and Actuarial Science; University of British Columbia, Department of Anesthesiology, Pharmacology and Therape.

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