A randomised controlled trial of three very brief interventions for physical activity in primary care.
Sally PearsMaaike BijkerKatie MortonJoana VasconcelosRichard A ParkerKate WestgateSoren BrageEd WilsonA Toby PrevostAnn-Louise KinmonthSimon GriffinStephen SuttonWendy Hardemannull nullPublished in: BMC public health (2016)
Current Controlled Trials ISRCTN02863077 . Retrospectively registered 05/10/2012.