Richards, G., Aronson, J., Heneghan, C., Mahtani, K., Koshiaris, C., & Persaud, N. (2020). Relation between opioid consumption and inclusion of opioids in 137 national essential medicines lists. BMJ Publishing Group.

Richards, GC, JK Aronson, C. Heneghan, KR Mahtani, C. Koshiaris, and N. Persaud. Relation Between Opioid Consumption and Inclusion of Opioids in 137 National Essential Medicines Lists. BMJ Publishing Group, 2020.

Richards, GC, et al. Relation Between Opioid Consumption and Inclusion of Opioids in 137 National Essential Medicines Lists. BMJ Publishing Group, 2020.