Hawser, S. P., Bouchillon, S. K., Hoban, D. J., Badal, R. E., Cantón, R., & Baquero, F. (2010). Incidence and Antimicrobial Susceptibility of Escherichia coli and Klebsiella pneumoniae with Extended-Spectrum β-Lactamases in Community- and Hospital-Associated Intra-Abdominal Infections in Europe: Results of the 2008 Study for Monitoring Antimicrobial Resistance Trends (SMART). American Society for Microbiology (ASM).

Hawser, Stephen P., Samuel K. Bouchillon, Daryl J. Hoban, Robert E. Badal, Rafael Cantón, a Fernando Baquero. Incidence and Antimicrobial Susceptibility of Escherichia Coli and Klebsiella Pneumoniae With Extended-Spectrum β-Lactamases in Community- and Hospital-Associated Intra-Abdominal Infections in Europe: Results of the 2008 Study for Monitoring Antimicrobial Resistance Trends (SMART). American Society for Microbiology (ASM), 2010.

Hawser, Stephen P., et al. Incidence and Antimicrobial Susceptibility of Escherichia Coli and Klebsiella Pneumoniae With Extended-Spectrum β-Lactamases in Community- and Hospital-Associated Intra-Abdominal Infections in Europe: Results of the 2008 Study for Monitoring Antimicrobial Resistance Trends (SMART). American Society for Microbiology (ASM), 2010.