Activity of ceftolozane-tazobactam, ceftazidime-avibactam, meropenem-vaborbactam, cefiderocol and comparators against Gram-negative organisms causing bloodstream infections in Northern Italy (2019-2021): emergence of complex resistance phenotypes. - Bianco G; Boattini M; Comini S; Iannaccone M; Casale R; Allizond V; Barbui AM; Banche G; Cavallo R; Costa C (Journal of chemotherapy (Florence, Italy), 2022)