@misc{indiciae6af17728a9c9,
  title = {Changes in asthma severity in Manitoba.},
  author = {D Erzen and L L Roos and J Manfreda and N R Anthonisen},
  year = {1995},
  doi = {10.1378/chest.108.1.16},
  url = {https://pubmed.ncbi.nlm.nih.gov/7606953/},
  note = {Source identifier: 7606953}
}