We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleClinical Presentation of Pertussis in Unvaccinated and Vaccinated Children in the First Six Years of LifeAuthorsTozzi, Alberto E.; Ravà, Lucilla; Ciofi degli Atti, Marta L.; Salmaso, Stefania; the Progetto Pertosse Working GroupPublicationPediatrics, 2003, Vol 112, Issue 5, p1069ISSN0031-4005Publication typearticleDOI10.1542/peds.112.5.1069