AUTHOR=Wang Bu , Zhang Wei , Zhang Hongxia , Li Maochen , Zhang Zhihua , Peng Xiaocui , Wang Na , Song Ning TITLE=Comparative analysis of clinical characteristics and outcomes between carbapenem-resistant and carbapenem-sensitive Klebsiella pneumoniae infections: insights from a tertiary hospital in Northern China JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1499057 DOI=10.3389/fmed.2025.1499057 ISSN=2296-858X