Carbapenem-resistant Klebsiella pneumoniae infections in Chinese children: in vitro activities of ceftazidime-avibactam and aztreonam-avibactam against carbapenemase-producing strains in a two-center study - Ran, Xia; Chen, Xue; Wang, Cai; Wang, Haiping; Xie, Wei; Jing, Chunmei (Frontiers in Cellular and Infection Microbiology, 2025)