Retraction: Monotherapy with meropenem versus combination therapy of ceftazidime plus amikacin for empirical treatment of cancer patients with Febrile Neutropenic (FN): systematic review and meta-analysis. (2015). European Journal of Oncology and Environmental Health, 20(1), 5-16. https://mattioli1885journals.com/index.php/EJOEH/article/view/4122