@misc{indiciaeb666991c9e93,
  title = {[Idiopathic diffuse esophageal spasm].},
  author = {P Heitmann},
  year = {1971},
  doi = {10.1055/s-0028-1110199},
  url = {https://pubmed.ncbi.nlm.nih.gov/5099198/},
  note = {Source identifier: 5099198}
}