00434nas a2200145   4500000000100000008004100001260002000042100001600062700002200078700001400100700001300114700002100127245013200148300000800280       2012                            d  aOdense, Denmark1 aFerreira P.1 aHenschke Nicholas1 aKamper S.1 aMaher C.1 aFerreira Manuela00aAge does not modify treatment effects among people with low back pain - secondary analyses of seven randomised clinical trials.  a165