@misc{indiciaef59647b0187f,
  title = {Ventilatory muscle training in the elderly.},
  author = {M J Belman and G A Gaesser},
  year = {1988},
  doi = {10.1152/jappl.1988.64.3.899},
  url = {https://pubmed.ncbi.nlm.nih.gov/3130371/},
  note = {Source identifier: 3130371}
}