A multicomponent structured health behaviour intervention to improve physical activity in long-distance HGV drivers: the SHIFT cluster RCT oleh Stacy A Clemes, Veronica Varela-Mato, Danielle H Bodicoat, Cassandra L Brookes, Yu-Ling Chen, Edward Cox, Charlotte L Edwardson, Laura J Gray, Amber Guest, Vicki Johnson, Fehmidah Munir, Nicola J Paine, Gerry Richardson, Katharina Ruettger, Mohsen Sayyah, Aron Sherry, Ana Suazo Di Paola, Jacqui Troughton, Simon Walker, Thomas Yates, James King