@misc{indiciae25420d9d7c33,
  title = {Achalasia.},
  author = {W Silber},
  year = {1965},
  doi = {10.1016/s0140-6736(65)92302-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4165418/},
  note = {Source identifier: 4165418}
}