RT Journal Article SR Electronic T1 New and experimental approaches to back pain JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E340 OP E340 DO 10.1503/cmaj.130640 VO 186 IS 9 A1 Sean A. Kennedy A1 Mark O. Baerlocher YR 2014 UL http://www.cmaj.ca/content/186/9/E340.abstract AB