@misc{indiciaecb03cac3770c,
  title = {Letter: Lower oesophageal sphincter.},
  author = {J A Bingham},
  year = {1974},
  doi = {10.1016/s0140-6736(74)92764-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4132021/},
  note = {Source identifier: 4132021}
}