@misc{indiciaea0220ea91139,
  title = {Credentialing for endoscopic surgery.},
  author = {N Perone},
  year = {1993},
  doi = {10.1016/s0015-0282(16)56122-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/8339847/},
  note = {Source identifier: 8339847}
}