TY - JOUR T1 - Physicians and climate change policy: We are powerful agents of change JF - Canadian Medical Association Journal JO - CMAJ SP - 307 LP - 307 DO - 10.1503/cmaj.150139 VL - 187 IS - 5 AU - Kirsten Patrick Y1 - 2015/03/17 UR - http://www.cmaj.ca/content/187/5/307.abstract ER -