%0 Journal Article %T Graded exercise for recurrent low-back pain: a randomized, controlled trial with 6-, 12-, and 36-month follow-ups. %A Rasmussen-Barr, Eva %A Ang, Bjorn %A Arvidsson, Inga %A Nilsson-Wikmar, Lena %J Spine %V 34 %N 3 %P 221-8 %@ 0362-2436 %D 2009-04-21 %~ DeepDyve