@misc{indiciaef3d02aa1113e,
  title = {The vulnerable oesophagus.},
  author = {E Christensen},
  year = {1968},
  doi = {10.1016/s0140-6736(68)92435-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4175420/},
  note = {Source identifier: 4175420}
}