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Raine, L.B., Erickson, K.I., Grove, G., Watrous, J.N.H., McDonald, K., Kang, C., Jakicic, J.M., Forman, D.E., Kramer, A.F., Burns, J.M., Vidoni, E.D., McAuley, E. & Hillman, C.H. (2023). Cardiorespiratory fitness levels and body mass index of pre-adolescent children and older adults during the COVID-19 pandemic. Frontiers in Public Health, 10.3389/fpubh.2022.1052389, 1-14.