@misc{indiciae8acfb3c4b822,
  title = {Introduction: why surgeons need to do flexible endoscopy.},
  author = {Jeffrey M Marks},
  year = {2003},
  doi = {10.1177/107155170301000102},
  url = {https://pubmed.ncbi.nlm.nih.gov/12695803/},
  note = {Source identifier: 12695803}
}