@misc{indiciae85221923de4c,
  title = {A digital computer and a lung function test service: efficiency and costs.},
  author = {C J Derrett and D P Jones and J V Collins and F M Wells},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/831769/},
  note = {Source identifier: 831769}
}