TY - JOUR T1 - Low-back pain JF - Canadian Medical Association Journal JO - CMAJ SP - 325 LP - 325 DO - 10.1503/cmaj.113-2104 VL - 185 IS - 4 AU - C. Chan Gunn Y1 - 2013/03/05 UR - http://www.cmaj.ca/content/185/4/325.1.abstract N2 - ER -