@misc{indiciae6646eaf83a34,
  title = {Perforated paediatric face mask.},
  author = {E Godwin},
  year = {1971},
  doi = {10.1111/j.1365-2044.1971.tb04770.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5550762/},
  note = {Source identifier: 5550762}
}