@misc{indiciae8acd25ac5050,
  title = {Ornithosis complement fixing antigen from infected allantoic fluid.},
  author = {E SONDERGAARD and M VOLKERT},
  year = {1957},
  doi = {10.1111/j.1699-0463.1957.tb01044.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13497686/},
  note = {Source identifier: 13497686}
}