RT Journal Article SR Electronic T1 Risk factors and outcome in extended spectrum beta-lactamase producing Escherichia coli and Klebsiella pneumoniae bacteremia JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1366 OP 1367 VO 30 IS 10 A1 Blot, Stijn A1 Memon, Javed I. YR 2009 UL http://smj.org.sa/content/30/10/1366.abstract