@misc{indiciae72c5731afcbf,
  title = {Normal pulmonary function in Botswana.},
  author = {J B Cookson and C N Pilane and P M Tembo},
  year = {1992},
  url = {https://pubmed.ncbi.nlm.nih.gov/1394405/},
  note = {Source identifier: 1394405}
}