@misc{indiciaeff95599ecf98,
  title = {Gastrointestinal bleeding.},
  author = {T A Marek},
  year = {2003},
  doi = {10.1055/s-2003-43485},
  url = {https://pubmed.ncbi.nlm.nih.gov/14606012/},
  note = {Source identifier: 14606012}
}