@misc{indiciae01bb35ed3ab1,
  title = {The double contrast barium meal--a simplification.},
  author = {G V O'Reilly and G Bryan},
  year = {1974},
  doi = {10.1259/0007-1285-47-560-482},
  url = {https://pubmed.ncbi.nlm.nih.gov/4418949/},
  note = {Source identifier: 4418949}
}