@misc{indiciae1886d1d15022,
  title = {Current concepts: gastrointestinal endoscopy.},
  author = {H Colcher},
  year = {1975},
  doi = {10.1056/nejm197511272932206},
  url = {https://pubmed.ncbi.nlm.nih.gov/1081199/},
  note = {Source identifier: 1081199}
}