@misc{indiciaec57cf91a4db4,
  title = {Tracheal agenesis: an unresolved problem.},
  author = {L Lopez and A Serrano and A Varela and J Freixinet and R Santana and R Beltra},
  year = {1991},
  doi = {10.1055/s-2007-1013941},
  url = {https://pubmed.ncbi.nlm.nih.gov/1877060/},
  note = {Source identifier: 1877060}
}