National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine prognosis treatment outcome research support non-u.s. gov't adult female male adolescent aged middle aged Comparative Study Prospective Studies Clinical Trial Randomized Controlled Trial chi-square distribution anti-bacterial agents / administration & dosage* ceftazidime / adverse effects drug therapy combination fever / drug therapy* neoplasms / complications* neutropenia / drug therapy* fever / etiology neutropenia / etiology analysis of variance penicillanic acid / administration & dosage penicillanic acid / analogs & derivatives* tazobactam treatment failure pmid:9695210 doi:10.1007/s005200050184 u hess c böhme h j senn amikacin / administration & dosage* amikacin / adverse effects ceftazidime / administration & dosage* enzyme inhibitors / administration & dosage* enzyme inhibitors / adverse effects penicillanic acid / adverse effects piperacillin / administration & dosage* piperacillin / adverse effects