@misc{indiciae0c81933b5f6c,
  title = {Abdominal surgery.},
  author = {A W ALLEN and C E WELCH},
  year = {1950},
  doi = {10.1056/nejm195007062430105},
  url = {https://pubmed.ncbi.nlm.nih.gov/15429947/},
  note = {Source identifier: 15429947}
}