Surveillance for Antimicrobial Susceptibility among Clinical Isolates of <i>Pseudomonas aeruginosa</i> and <i>Acinetobacter baumannii</i> from Hospitalized Patients in the United States, 1998 to 2001James A. Karlowsky, Daniel F. Sahm, Deborah C. Draghi et al.|Antimicrobial Agents and Chemotherapy|2003Cited by 352