@article{sallis2016-27475270,
  author  = {Sallis, J. F. and Bull, F. and Guthold, R. and Heath, G. W. and Inoue, S. and Kelly, P. and Oyeyemi, A. L. and Perez, L. G. and others},
  title   = {{Progress in physical activity over the Olympic quadrennium}},
  journal = {Lancet (London, England)},
  year    = {2016},
  doi     = {10.1016/s0140-6736(16)30581-5},
  pmid    = {27475270},
  url     = {https://doi.org/10.1016/s0140-6736(16)30581-5}
}