A randomised controlled trial and cost-effectiveness evaluation of ‘booster’ interventions to sustain increases in physical activity in middle-aged adults in deprived urban neighbo... oleh Elizabeth Goyder, Daniel Hind, Jeff Breckon, Munyaradzi Dimairo, Jonathan Minton, Emma Everson-Hock, Simon Read, Robert Copeland, Helen Crank, Kimberly Horspool, Liam Humphreys, Andrew Hutchison, Sue Kesterton, Nicolas Latimer, Emma Scott, Peter Swaile, Stephen J Walters, Rebecca Wood, Karen Collins, Cindy Cooper