@misc{indiciae8b790fc01982,
  title = {Nasal pH measurement: a reliable and repeatable parameter.},
  author = {R J England and J J Homer and L C Knight and S R Ell},
  year = {1999},
  doi = {10.1046/j.1365-2273.1999.00223.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10196653/},
  note = {Source identifier: 10196653}
}