@misc{indiciaee319d1821012,
  title = {The interdependence between maximum mean expiratory flow (MMEF25-75\%) and some spirographic diffusion and blood-gas indices in patients with chronic non-specific lung disease (CNLD).},
  author = {I Kirin and D Ilouchev and S Kostyanev and I Yanev},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3108110/},
  note = {Source identifier: 3108110}
}