@misc{indiciae6d3230155c44,
  title = {Perspectives on fetal lung development.},
  author = {R H Perelman and M J Engle and P M Farrell},
  year = {1981},
  doi = {10.1007/bf02713900},
  url = {https://pubmed.ncbi.nlm.nih.gov/7015023/},
  note = {Source identifier: 7015023}
}