TY - JOUR T1 - Obama taps new allies and tackles age-old divisions in nudging health care reform JF - Canadian Medical Association Journal JO - CMAJ SP - E111 LP - E113 DO - 10.1503/cmaj.109-3132 VL - 182 IS - 2 AU - Cal Woodward Y1 - 2010/02/09 UR - http://www.cmaj.ca/content/182/2/E111.abstract ER -