Spreer, A., Lis, A., Gerber, J., Reinert, R. R., Eiffert, H., & Nau, R. (2004). Differences in Clinical Manifestation of Streptococcus pneumoniae Infection Are Not Correlated with In Vitro Production and Release of the Virulence Factors Pneumolysin and Lipoteichoic and Teichoic Acids. American Society for Microbiology.

Spreer, Annette, Astrid Lis, Joachim Gerber, Ralf René Reinert, Helmut Eiffert, و Roland Nau. Differences in Clinical Manifestation of Streptococcus Pneumoniae Infection Are Not Correlated With In Vitro Production and Release of the Virulence Factors Pneumolysin and Lipoteichoic and Teichoic Acids. American Society for Microbiology, 2004.

Spreer, Annette, et al. Differences in Clinical Manifestation of Streptococcus Pneumoniae Infection Are Not Correlated With In Vitro Production and Release of the Virulence Factors Pneumolysin and Lipoteichoic and Teichoic Acids. American Society for Microbiology, 2004.