@article{zhao2020-32611588,
  author  = {Zhao, M. and Veeranki, S. P. and Magnussen, C. G. and Xi, B.},
  title   = {{Recommended physical activity and all cause and cause specific mortality in US adults: prospective cohort study}},
  journal = {BMJ (Clinical research ed.)},
  year    = {2020},
  doi     = {10.1136/bmj.m2031},
  pmid    = {32611588},
  url     = {https://doi.org/10.1136/bmj.m2031}
}