Action 3:30R: process evaluation of a cluster randomised feasibility study of a revised teaching assistant-led extracurricular physical activity intervention for 8 to 10 year olds.
Byron TibbittsAlice PorterSimon J SebireEmma L BirdEmily SandersonChris MetcalfeJane E PowellRussell JagoPublished in: BMC public health (2019)
ISRCTN34001941 . Prospectively registered 01/12/2016.