@misc{indiciae699f702f06ec,
  title = {Pertussis syndrome.},
  author = {M S Howitz},
  year = {1970},
  doi = {10.1056/nejm197011192832127},
  url = {https://pubmed.ncbi.nlm.nih.gov/4319776/},
  note = {Source identifier: 4319776}
}