@misc{indiciae1e5f21548fd4,
  title = {The flow-volume curve. A current perspective.},
  author = {R E Hyatt and L F Black},
  year = {1973},
  doi = {10.1164/arrd.1973.107.2.191},
  url = {https://pubmed.ncbi.nlm.nih.gov/4567070/},
  note = {Source identifier: 4567070}
}