@misc{indiciaefd74a01e99b7,
  title = {Loss of protective antigen, histamine-sensitising factor and envelope polypeptides in cultural variants of Bordetella pertussis.},
  author = {A C Wardlaw and R Parton and M J Hooker},
  year = {1976},
  doi = {10.1099/00222615-9-1-89},
  url = {https://pubmed.ncbi.nlm.nih.gov/57240/},
  note = {Source identifier: 57240}
}