Collection: 01-internacional Database: MEDLINE Main subject: Chickenpox Vaccine / Ethics, Medical Type of study: Incidence_studies / Prognostic_studies Aspects: Ethics / Patient_preference Limits: Child / Female / Humans / Male Country/Region as subject: Europa Language: En Journal: Commun Dis Public Health Journal subject: DOENCAS TRANSMISSIVEIS / SAUDE PUBLICA Year: 2002 Document type: Article