@misc{indiciae83b084664f8e,
  title = {Testing airway responsiveness using inhaled methacholine or histamine.},
  author = {A James and G Ryan},
  year = {1997},
  doi = {10.1111/j.1440-1843.1997.tb00061.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9441133/},
  note = {Source identifier: 9441133}
}