Allison, K., Philipneri, A., Vu-Nguyen, K., Manson, H., Dwyer, J., Hobin, E., … Li, Y. (2018). School and classroom effects on Daily Physical Activity (DPA) policy implementation fidelity in Ontario classrooms: a multi-level analysis. BMC Public Health, 18(1), 802. https://doi.org/10.1186/s12889-018-5720-2 (Original work published 2018)