@misc{indiciae6a0561f2994d,
  title = {Supernumerary intrathoracic ribs.},
  author = {J P Polga and M Kroeker and M Cloud},
  year = {1974},
  doi = {10.1164/arrd.1974.109.2.283},
  url = {https://pubmed.ncbi.nlm.nih.gov/4811784/},
  note = {Source identifier: 4811784}
}