RT Journal Article SR Electronic T1 Opioids for chronic noncancer pain: a new Canadian practice guideline JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 923 OP 930 DO 10.1503/cmaj.100187 VO 182 IS 9 A1 Andrea D. Furlan A1 Rhoda Reardon A1 Clarence Weppler A1 for the National Opioid Use Guideline Group (NOUGG) YR 2010 UL http://www.cmaj.ca/content/182/9/923.abstract