@article{heyn2004-15468033,
  author  = {Heyn, P. and Abreu, B. C. and Ottenbacher, K. J.},
  title   = {{The effects of exercise training on elderly persons with cognitive impairment and dementia: a meta-analysis}},
  journal = {Archives of physical medicine and rehabilitation},
  year    = {2004},
  doi     = {10.1016/j.apmr.2004.03.019},
  pmid    = {15468033},
  url     = {https://doi.org/10.1016/j.apmr.2004.03.019}
}