Kotloff, K. L., Wasserman, S. S., Losonsky, G. A., Thomas, W., Nichols, R., Edelman, R., . . . Monath, T. P. (2001). Safety and Immunogenicity of Increasing Doses of a Clostridium difficile Toxoid Vaccine Administered to Healthy Adults. American Society for Microbiology.

Kotloff, Karen L., Steven S. Wasserman, Genevieve A. Losonsky, William Thomas, Richard Nichols, Robert Edelman, Margaret Bridwell, und Thomas P. Monath. Safety and Immunogenicity of Increasing Doses of a Clostridium Difficile Toxoid Vaccine Administered to Healthy Adults. American Society for Microbiology, 2001.

Kotloff, Karen L., et al. Safety and Immunogenicity of Increasing Doses of a Clostridium Difficile Toxoid Vaccine Administered to Healthy Adults. American Society for Microbiology, 2001.