@misc{indiciae917c7ee948e6,
  title = {Difficult asthma.},
  author = {S Packham},
  year = {2000},
  doi = {10.1183/09031936.00.15123300},
  url = {https://pubmed.ncbi.nlm.nih.gov/10678652/},
  note = {Source identifier: 10678652}
}