@misc{indiciaebf8f98b20452,
  title = {Diffuse esophageal spasm.},
  author = {S M Brenner and D Berkowitz and S C Fell and A E Bloomberg},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/265008/},
  note = {Source identifier: 265008}
}