@misc{indiciae0e70399af5f1,
  title = {The difficult asthmatic.},
  author = {I Gregg},
  year = {1977},
  doi = {10.2165/00003495-197713010-00004},
  url = {https://pubmed.ncbi.nlm.nih.gov/401728/},
  note = {Source identifier: 401728}
}