- An outbreak of group B meningococcal disease: tracing the causative strain of Neisseria meningitidis by DNA fingerprinting. Kristiansen, B.E., Sørensen, B., Bjorvatn, B., Falk, E.S., Fosse, E., Bryn, K., Frøholm, L.O., Gaustad, P., Bøvre, K. J. Clin. Microbiol. (1986)