Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "International Symposium on Pertussis, 2d, Bilthoven, Netherlands, 1969 and Hamert, Paulus Aloysius van and Ramshorst, J. D. van and Regamey, R. H. (Robert Henri) and International Association of Microbiological Societies. Permanent Section of Microbiological Standardization and Rijksinstituut voor de Volksgezondheid (Netherlands)",International Symposium on Pertussis : Proceedings of the 25th symposium organized by the Permanent Section of Microbiological Standardization ...,,S. Karger,1970,Symposia series in immunobiological standardization,,,,https://cir.nii.ac.jp/crid/1130282271883375104