Sahm, D. F., Thornsberry, C., Mayfield, D. C., Jones, M. E., & Karlowsky, J. A. (2001). Multidrug-Resistant Urinary Tract Isolates of Escherichia coli: Prevalence and Patient Demographics in the United States in 2000. American Society for Microbiology.

Sahm, Daniel F., Clyde Thornsberry, David C. Mayfield, Mark E. Jones, and James A. Karlowsky. Multidrug-Resistant Urinary Tract Isolates of Escherichia Coli: Prevalence and Patient Demographics in the United States in 2000. American Society for Microbiology, 2001.

Sahm, Daniel F., et al. Multidrug-Resistant Urinary Tract Isolates of Escherichia Coli: Prevalence and Patient Demographics in the United States in 2000. American Society for Microbiology, 2001.