'Physical Activity 4 Everyone' school-based intervention to prevent decline in adolescent physical activity levels: 12 month (mid-intervention) report on a cluster randomised trial

- Sutherland, Rachel; Campbell, Elizabeth; Wiggers, John; Lubans, David R.; Morgan, Philip J.; Okely, Anthony D.; Nathan, Nicole; Wolfenden, Luke; Wiese, Jarrod; Gillham, Karen; Hollis, Jenna