00365nas a2200133 4500000000100000008004100001100001600042700001500058700001300073245011700086300001400203490000800217050000600225 2009 d1 aHerbert Rob1 aHancock M.1 aMaher C.00aClinical guide to interpretation of studies investigating subgroups of responders to physiotherapy interventions a698-704. 0 v89  aY