@misc{indiciae8e2b291c9c80,
  title = {[Measurement of complement with a microliter method].},
  author = {R Ringelmann and W Opferkuch and M Röllinghoff and M Loos},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/4976618/},
  note = {Source identifier: 4976618}
}