@misc{indiciaee5283efae7d5,
  title = {Air bubble in the duodenum.},
  author = {J TAPIOVAARA and M SIURALA},
  year = {1961},
  doi = {10.1111/j.0954-6820.1961.tb00225.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13775258/},
  note = {Source identifier: 13775258}
}