@misc{indiciaeb56a6692f499,
  title = {Nifedipine therapy for diffuse esophageal spasm.},
  author = {E Thomas and P Witt and M Willis and J Morse},
  year = {1986},
  doi = {10.1097/00007611-198607000-00017},
  url = {https://pubmed.ncbi.nlm.nih.gov/3726585/},
  note = {Source identifier: 3726585}
}