@misc{indiciae3380efff9e63,
  title = {Abnormal solid bolus swallowing in the erect position.},
  author = {D J Curtis and D F Cruess and E R Willgress},
  year = {1987},
  doi = {10.1007/bf02406978},
  url = {https://pubmed.ncbi.nlm.nih.gov/3507291/},
  note = {Source identifier: 3507291}
}