Paton, J. C., Lock, R. A., Lee, C. J., Li, J. P., Berry, A. M., Mitchell, T. J., . . . Boulnois, G. J. (1991). Purification and immunogenicity of genetically obtained pneumolysin toxoids and their conjugation to Streptococcus pneumoniae type 19F polysaccharide.

Paton, J C., R A. Lock, C J. Lee, J P. Li, A M. Berry, T J. Mitchell, P W. Andrew, D. Hansman, and G J. Boulnois. Purification and Immunogenicity of Genetically Obtained Pneumolysin Toxoids and Their Conjugation to Streptococcus Pneumoniae Type 19F Polysaccharide. 1991.

Paton, J C., et al. Purification and Immunogenicity of Genetically Obtained Pneumolysin Toxoids and Their Conjugation to Streptococcus Pneumoniae Type 19F Polysaccharide. 1991.