Wang, J. Y., Noriega, F. R., Galen, J. E., Barry, E., & Levine, M. M. (2000). Constitutive Expression of the Vi Polysaccharide Capsular Antigen in Attenuated Salmonella enterica Serovar Typhi Oral Vaccine Strain CVD 909. American Society for Microbiology.

Wang, Jin Yuan, Fernando R. Noriega, James E. Galen, Eileen Barry, et Myron M. Levine. Constitutive Expression of the Vi Polysaccharide Capsular Antigen in Attenuated Salmonella Enterica Serovar Typhi Oral Vaccine Strain CVD 909. American Society for Microbiology, 2000.

Wang, Jin Yuan, et al. Constitutive Expression of the Vi Polysaccharide Capsular Antigen in Attenuated Salmonella Enterica Serovar Typhi Oral Vaccine Strain CVD 909. American Society for Microbiology, 2000.