Zeitschrift für PräventivmedizinJanuary 1962, Volume 7, Issue 1, pp 170–176 | Cite asWir haben für Sie gelesenAuthorsAuthors and affiliationsT.A.Etienne PerretE. GrandjeanTh. AbelinArticle 10 Downloads Nous avons lu pour vousThis is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Schweiz. Serum- & Impfinstitut 1962Authors and AffiliationsT.A.Etienne PerretE. Grandjean1Th. Abelin11.Zürich