@misc{indiciae077d19a3e49c,
  title = {Whooping cough--a continuing problem.},
  author = {N S Crowcroft and Joseph Britto},
  year = {2002},
  doi = {10.1136/bmj.324.7353.1537},
  url = {https://pubmed.ncbi.nlm.nih.gov/12089076/},
  note = {Source identifier: 12089076}
}