@misc{indiciaef63b31afc13f,
  title = {Retroperitoneal sarcoma treated by surgery.},
  author = {S Bengmark and L Hafström and P E Jönsson and W Karp and H Nordgren},
  year = {1980},
  doi = {10.1002/jso.2930140404},
  url = {https://pubmed.ncbi.nlm.nih.gov/7442259/},
  note = {Source identifier: 7442259}
}