Phenotypic and genotypic analysis of levofloxacin-resistant clinical isolates of Streptococcus pneumoniae collected in 13 countries during 1999-2000CRITCHLEY, Ian A; BLOSSER-MIDDLETON, Renée S; JONES, Mark E et al.International journal of antimicrobial agents. 2002, Vol 20, Num 2, pp 100-107, issn 0924-8579, 8 p.Article

Antimicrobial surveillance of Haemophilus influenzae in the United States during 2000-2001 leads to detection of clonal dissemination of a β-lactamase-negative and ampicillin-resistant strainKARLOWSKY, James A; CRITCHLEY, Ian A; BLOSSER-MIDDLETON, Renée S et al.Journal of clinical microbiology (Print). 2002, Vol 40, Num 3, pp 1063-1066, issn 0095-1137Article