00404nas a2200157 4500000000100000000000100001008004100002100001200043700001200055700001400067700001500081245011900096300001000215490000700225022001400232 2013 d1 aJ. Hong1 aC. Reed1 aD. Novick1 aM. Happich00aCosts associated with treatment of chronic low back pain: an analysis of the UK General Practice Research Database a75-820 v38 a0362-2436