Doherty, A., Hammerla, N., Jackson, D., Plötz, T., Olivier, P., Granat, M., …Wareham, N. (2017). Large scale population assessment of physical activity using wrist worn accelerometers: The UK Biobank Study. PLOS ONE, 12(2), e0169649. https://doi.org/10.1371/journal.pone.0169649