@misc{indiciae08733392590f,
  title = {[Shadows in the costo-phrenic angle].},
  author = {W Maassen},
  year = {1968},
  doi = {10.1055/s-0028-1105009},
  url = {https://pubmed.ncbi.nlm.nih.gov/5635029/},
  note = {Source identifier: 5635029}
}