@misc{indiciaef899a40b56b0,
  title = {The maximal midexpiratory flow time.},
  author = {J J Segall and B A Butterworth},
  year = {1968},
  doi = {10.1016/s0007-0971(68)80004-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5667590/},
  note = {Source identifier: 5667590}
}