@misc{indiciaed89c8dcbc65d,
  title = {Calcification and ossification in rectal malignant processes.},
  author = {S ENGEL and M B DOCKERTY},
  year = {1962},
  doi = {10.1001/jama.1962.03050050037006},
  url = {https://pubmed.ncbi.nlm.nih.gov/13890226/},
  note = {Source identifier: 13890226}
}