@misc{indiciaee4bdddba8def,
  title = {Gastrointestinal problems in the old. I.},
  author = {D E Hyams},
  year = {1974},
  doi = {10.1136/bmj.1.5898.107},
  url = {https://pubmed.ncbi.nlm.nih.gov/4520577/},
  note = {Source identifier: 4520577}
}