Cefepime plus amikacin versus piperacillin-tazobactam plus amikacin for initial antibiotic therapy in haematology patients with febrile neutropenia: results of an open, randomized, multicentre trial.
Sanz MA, López J, Lahuerta JJ, Rovira M, Batlle M, Pérez C, Vázquez L, Julià A, Palau J, Gutiérrez M, et al. J Antimicrob Chemother. 2002 Jul; 50(1):79-88.