@misc{indiciae169f763e36d9,
  title = {Simple perfusion pump for gastrointestinal manometry.},
  author = {H R Koelz and H H Brändli and A L Blum},
  year = {1975},
  doi = {10.1016/s0140-6736(75)90437-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/53557/},
  note = {Source identifier: 53557}
}