@misc{indiciaefb37a1e5a51f,
  title = {Double contrast duodenography.},
  author = {R H Matallana},
  year = {1974},
  doi = {10.1148/112.1.218},
  url = {https://pubmed.ncbi.nlm.nih.gov/4832500/},
  note = {Source identifier: 4832500}
}