TY - JOUR T1 - Massachusetts considering payment reform JF - Canadian Medical Association Journal JO - CMAJ SP - E221 LP - E222 DO - 10.1503/cmaj.109-3058 VL - 181 IS - 10 AU - Roger Collier Y1 - 2009/11/10 UR - http://www.cmaj.ca/content/181/10/E221.abstract ER -