antimicrobial efficacy measured by mic was compared with cez and cet , and the results were as follows : cfx was inferior to the two cephalosporins for s. aureus , it was between cez and cet for h. influenzae and h. parainfluenzae , and cfx was superior to cez and cet for e. coli .
C3536856
cephalosporins
C0007557
cfx