Rijksinstituut voor Volksgezondheid en Milieu Epidemiological implications of the isolation and intratypic serodifferentiation of poliovirus strains in The Netherlands | RIVM Jaar: 1981 Epidemiological implications of the isolation and intratypic serodifferentiation of poliovirus strains in The Netherlands | RIVM Bron: rivm.nl Download dossier (ZIP) · JSON