@misc{indiciaef2d683ee014f,
  title = {Assigning appropriateness ratings for diagnostic upper gastrointestinal endoscopy using two different approaches.},
  author = {K L Kahn and R E Park and J Vennes and R H Brook},
  year = {1992},
  doi = {10.1097/00005650-199211000-00005},
  url = {https://pubmed.ncbi.nlm.nih.gov/1434955/},
  note = {Source identifier: 1434955}
}