TY - JOUR T1 - The challenges of quantifying quality JF - Canadian Medical Association Journal JO - CMAJ SP - E250 LP - E250 DO - 10.1503/cmaj.109-3191 VL - 182 IS - 5 AU - Roger Collier Y1 - 2010/03/23 UR - http://www.cmaj.ca/content/182/5/E250.abstract ER -