@misc{indiciaee8eeede65e8b,
  title = {Physical activity in an ageing population.},
  author = {M Schroll},
  year = {2003},
  doi = {10.1034/j.1600-0838.2003.20226.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12535319/},
  note = {Source identifier: 12535319}
}