Dabare, Prasangi M., Indu Waidyatilaka, Ranil Jayawardena, Rajitha Wickremasinghe, Andrew P. Hills, Pujitha Wickramasinghe, and Pulani Lanerolle. 2019. “School-Based Physical Activity Intervention in 11-13-Year-Olds: Study Protocol for Cluster Randomized Controlled Trial”. International Journal of Clinical Trials 6 (3):129-37. https://doi.org/10.18203/2349-3259.ijct20193216.