@misc{indiciae76fa150af5c4,
  title = {Complement Fixation with Simple Substances Containing Two or More Haptenic Groups.},
  author = {D Pressman and D H Campbell and L Pauling},
  year = {1942},
  doi = {10.1073/pnas.28.3.77},
  url = {https://pubmed.ncbi.nlm.nih.gov/16578035/},
  note = {Source identifier: 16578035}
}