@misc{indiciae6f941f14af72,
  title = {A unique complement derived chemotactic factor for tumor cells.},
  author = {A G Romualdez and P A Ward},
  year = {1975},
  doi = {10.1073/pnas.72.10.4128},
  url = {https://pubmed.ncbi.nlm.nih.gov/172896/},
  note = {Source identifier: 172896}
}