Ashton, FEMancino, LRyan, AJPoolman, JTAbdillahi, HZollinger, WD2025-03-122025-03-121991https://rivm.openrepository.com/handle/10029/633402Serotypes and subtypes of Neisseria meningitidis serogroup B strains associated with meningococcal disease in Canada, 1977-1989.ArticleCan J Microbiol 1991; 37:613-72025-03-12