Beaulieu, T., Ti, L., Milloy, M., Nosova, E., Wood, E., & Hayashi, K. (2018). Major depressive disorder and access to health services among people who use illicit drugs in Vancouver, Canada. Substance Abuse Treatment, Prevention, and Policy, 13(1), 3. https://doi.org/10.1186/s13011-018-0142-9 (Original work published 2018)