Conyn-van Spaendonck, MAESchellekens, JFPde Melker, HE2025-03-142025-03-141997https://rivm.openrepository.com/handle/10029/636740An unexpected outbreak of pertussis in 1996.ArticleIn: Annual scientific report 1996. Bilthoven: National Institute of Public Health and the Environment, 1997;61-32025-03-14