@misc{indiciaeb4dcfc6bf7bc,
  title = {Tumor markers.},
  author = {H P Ewing and B D Newsom and J D Hardy},
  year = {1982},
  doi = {10.1016/0011-3840(82)90016-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/6175486/},
  note = {Source identifier: 6175486}
}