@misc{indiciae15a54539f413,
  title = {Databases for gastrointestinal endoscopy.},
  author = {Z Maratka},
  doi = {10.1016/s0016-5107(92)70447-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/1607101/},
  note = {Source identifier: 1607101}
}