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APA Citation
McKay, H. A., MacLean, L., Petit, M., MacKelvie-O'Brien, K., Janssen, P., Beck, T., & Khan, K. M. (2005). "Bounce at the Bell": a novel program of short bouts of exercise improves proximal femur bone mass in early pubertal children. British journal of sports medicine, 39(8), 521–526. http://access.bl.uk/ark:/81055/vdc_100135567588.0x00002b