Whether to continue combining carbapenems to treat carbapenem-resistant Acinetobacter baumannii nosocomial pneumonia in critically ill patients: a retrospective efficacy and safety analysis - Cheng Shiqi; Wang Chuhui; Zhang Yijing; Qiu Yulan; Chen Jiaojiao; Chen Keyu; Shi Qindong; Zeng Xiaoyan; Dong Yalin (European Journal of Clinical Microbiology & Infectious Diseases, 2025)