@misc{indiciae102ece11d8ad,
  title = {Lower esophageal sphincter dysfunction in diffuse esophageal spasm.},
  author = {S Campo and M Traube},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2756985/},
  note = {Source identifier: 2756985}
}