AUTHOR=Fang Shusheng , Wang Yali , Nan Wenyu , Feng Yanhao , Su Wen , Wang Yiming , Jiang Xiaodong TITLE=Unfractionated heparin may improve near-term survival in patients admitted to the ICU with sepsis attributed to pneumonia: an observational study using the MIMIC-IV database JOURNAL=Frontiers in Pharmacology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1518716 DOI=10.3389/fphar.2025.1518716 ISSN=1663-9812