![Molecular Analysis of the Genetic Variation among Penicillin-Susceptible and Penicillin-Resistant Streptococcus Pneumoniae Serotypes in Canada]()
Molecular Analysis of the Genetic Variation among Penicillin-Susceptible and Penicillin-Resistant Streptococcus Pneumoniae Serotypes in CanadaM. Louie, L. Louie, G. Papia, J. Talbot, M. Lovgren and A. E. Simor · The Journal of Infectious Diseases · 1999