00507nas a2200157   4500000000100000008004100001100001200042700001200054700001400066700001900080700001500099245018700114300001000301490000600311022003200317       2013                            d1 aC. Reed1 aJ. Hong1 aD. Novick1 aA. Lenox-Smith1 aM. Happich00aHealth care costs before and after diagnosis of depression in patients with unexplained pain: a retrospective cohort study using the United Kingdom General Practice Research Database  a37-470 v5  a1178-6981 (Print) 1178-6981