@misc{indiciaef7c946ab10b7,
  title = {Single-contrast/double-contrast Gi.},
  year = {1978},
  doi = {10.2214/ajr.131.6.1116-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/104591/},
  note = {Source identifier: 104591}
}