@misc{indiciae2aada6a4f2dc,
  title = {Diffuse esophageal spasm.},
  author = {G Gonzalez},
  year = {1973},
  doi = {10.2214/ajr.117.2.251},
  url = {https://pubmed.ncbi.nlm.nih.gov/4685853/},
  note = {Source identifier: 4685853}
}