the double beta-lactam combination of cefoperazone plus piperacillin was compared with an aminoglycoside-containing regimen of mezlocillin plus tobramycin in a prospective , randomized trial of empiric therapy for febrile neutropenic patients ( neutrophils no more than 1,000/mm3 ) .
C0002556
aminoglycoside
C0040341
tobramycin