1. Some agent characteristics and their coexistence related to occurrence and severity of systemic meningococcal disease in Norway, winter 1981-1982.;Bøvre;NIPH Ann.,1983
2. Mutations to tolerance and resistance to pesticin and colicins in Escherichia coli.;Ferber;J. Bact.,1981
3. Serotypes of Neisseria meningitidis isolated from patients in Norway during the first six months of 1978.;Holten;J. clin. Microbiol.
4. Three types of growth inhibition among strains of Neisseria meningitidis isolated from patients in Norway.;Jyssum;Acta path. microbiol. immunol. scand. Sect. B,1982
5. Expression of bacteriocin-like activity in batch cultures of Neisseria meningitidis and consequences for genetic recombination.;Jyssum;Acta path. microbiol. immunol. scand. Sect. B,1983