Extended-spectrum-[beta]-lactamase-positive Escherichia coli mainly adds to, rather than replaces, extended-spectrum-[beta]-lactamase-negative E. coli in causing bacteraemia in Hong Kong, 2000-10. - Ho PL; Chow KH; Lai EL; Lau EH; Cheng VC (Journal of Antimicrobial Chemotherapy (JAC), 2012)