@misc{indiciae98081870a060,
  title = {Colonoscopy practice variation.},
  author = {Douglas K Rex},
  year = {2003},
  doi = {10.1067/s0016-5107(03)01974-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/14520310/},
  note = {Source identifier: 14520310}
}