@misc{indiciaef1e0453baa28,
  title = {Abdominal surgery. I.},
  author = {C E Welch},
  year = {1973},
  doi = {10.1056/nejm197303222881206},
  url = {https://pubmed.ncbi.nlm.nih.gov/4568845/},
  note = {Source identifier: 4568845}
}