Rijksinstituut voor Volksgezondheid en Milieu Social networks in relation to self-reported symptomatic infections in individuals aged 40-75 - the Maastricht study | RIVM Jaar: 2018 Social networks in relation to self-reported symptomatic infections in individuals aged 40-75 - the Maastricht study | RIVM Bron: rivm.nl Download dossier (ZIP) · JSON