PT - JOURNAL ARTICLE AU - Thomas Kerr TI - Public health responses to the opioid crisis in North America AID - 10.1136/jech-2018-210599 DP - 2019 Feb 05 TA - Journal of Epidemiology and Community Health PG - jech-2018-210599 4099 - http://jech.bmj.com/content/early/2019/02/05/jech-2018-210599.short 4100 - http://jech.bmj.com/content/early/2019/02/05/jech-2018-210599.full