@misc{indiciaea4e9731d9fb4,
  title = {Comparative analysis of some methods for standardizing the maximal expiratory flows.},
  author = {I Yanev and M Ivanova},
  year = {1992},
  url = {https://pubmed.ncbi.nlm.nih.gov/1339763/},
  note = {Source identifier: 1339763}
}