Cite
MLA Citation
Timothy Bryan Hartwig et al.. “School-based interventions modestly increase physical activity and cardiorespiratory fitness but are least effective for youth who need them most: an individual participant pooled analysis of 20 controlled trials.” British journal of sports medicine, vol. 55, no. 13, 2021, pp. 721–729. http://access.bl.uk/ark:/81055/vdc_100132726459.0x00003f