@misc{indiciae056f2b48652b,
  title = {Macrophages in solid tumors. I. Immunologically specific effector cells.},
  author = {H Van Loveren and W Den Otter},
  year = {1974},
  doi = {10.1093/jnci/53.4.1057},
  url = {https://pubmed.ncbi.nlm.nih.gov/4139274/},
  note = {Source identifier: 4139274}
}