Wood, E., Spittal, P. M., Kerr, T., Small, W., Tyndall, M. W., O’Shaughnessy, M. V., & Schechter, M. T. (2003). Requiring Help Injecting as a Risk Factor for HIV Infection in the Vancouver Epidemic: Implications for HIV Prevention. Can J Public Health.

Wood, Evan, Patricia M. Spittal, Thomas Kerr, Will Small, Mark W. Tyndall, Michael V. O’Shaughnessy, und Martin T. Schechter. "Requiring Help Injecting As a Risk Factor for HIV Infection in the Vancouver Epidemic: Implications for HIV Prevention." Can J Public Health 2003.

Wood, Evan, et al. "Requiring Help Injecting As a Risk Factor for HIV Infection in the Vancouver Epidemic: Implications for HIV Prevention." Can J Public Health 2003.