Woo, P. C. Y., Fung, A. M. Y., Wong, S. S. Y., Tsoi, H., & Yuen, K. (2001). Isolation and Characterization of a Salmonella enterica Serotype Typhi Variant and Its Clinical and Public Health Implications. American Society for Microbiology.

Woo, Patrick C. Y., Ami M. Y. Fung, Samson S. Y. Wong, Hoi-Wah Tsoi, and Kwok-Yung Yuen. Isolation and Characterization of a Salmonella Enterica Serotype Typhi Variant and Its Clinical and Public Health Implications. American Society for Microbiology, 2001.

Woo, Patrick C. Y., et al. Isolation and Characterization of a Salmonella Enterica Serotype Typhi Variant and Its Clinical and Public Health Implications. American Society for Microbiology, 2001.