King, Nicholas B Determinants of increased opioid-related mortality in the United States and Canada, 1990-2013: a systematic review. [electronic resource] - American journal of public health Aug 2014 - e32-42 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Review; Systematic Review ISSN: 1541-0048 Standard No.: 10.2105/AJPH.2014.301966 doi Subjects--Topical Terms: Analgesics, Opioid--adverse effectsCanada--epidemiologyHumansMethadone--therapeutic useNoscapineOpioid-Related Disorders--mortalityOxycodone--adverse effectsPractice Patterns, Physicians'--statistics & numerical dataRisk FactorsSocioeconomic FactorsUnited States--epidemiology