@misc{indiciae19485a6cfd2d,
  title = {Advanced training programs in gastrointestinal endoscopy.},
  author = {M V Sivak and J A Vennes and P B Cotton and J E Geenen and S B Benjamin and G A Lehman},
  doi = {10.1016/s0016-5107(93)70133-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/8514089/},
  note = {Source identifier: 8514089}
}