00510nas a2200169   4500000000100000008004100001100001600042700001300058700001600071700001700087700001200104700001300116245018400129300001400313490000700327050000600334       2008                            d1 aHelmhout P.1 aStaal J.1 aPetersen T.1 aRainville J.1 aShaw W.1 aMaher C.00aExercise therapy and low back pain: insights and proposals to improve the design, conduct, and reporting of clinical trials on the effects of therapeutic exercise in low back pain  a1782-8.  0 v33  aY