Emerging importance of multidrug-resistant Acinetobacter species and Stenotrophomonas maltophilia as pathogens in seriously ill patients: geographic patterns, epidemiological features, and trends in the SENTRY Antimicrobial Surveillance Program (1997-1999) - Gales,A.C.; Jones,R.N.; Forward,K.R.; Linares,J.; Sader,H.S.; Verhoef,J. (Clin Infect Dis, 2001)