RT Journal Article SR Electronic T1 Chronic back pain: searching for causes and cures. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2323 OP 2325 VO 31 IS 12 A1 J Hampton Atkinson YR 2004 UL http://www.jrheum.org/content/31/12/2323.abstract AB