@misc{indiciae6d20f2efc541,
  title = {Operator volume as a "risk factor".},
  author = {S E Kimmel and D M Kolansky},
  year = {1997},
  doi = {10.1016/s0735-1097(97)00273-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/9316512/},
  note = {Source identifier: 9316512}
}