@misc{indiciae6f61bcc0311b,
  title = {Pressure decrease in the lower oesophageal sphincter in achalasia by glucagon.},
  author = {R Siewert and E Früh and F Waldeck},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4803031/},
  note = {Source identifier: 4803031}
}