@misc{indiciae386e03a5117f,
  title = {What constitutes endoscopic competence?},
  author = {W J Hogan},
  year = {1993},
  doi = {10.1016/0016-5085(93)90374-l},
  url = {https://pubmed.ncbi.nlm.nih.gov/8482473/},
  note = {Source identifier: 8482473}
}