AUTHOR=Wen Qiuping , Kang Zhenming , Shen Zhiyong TITLE=Association between SII and postoperative pulmonary infection in elderly patients undergoing laparoscopic abdominal surgery JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1532040 DOI=10.3389/fmed.2025.1532040 ISSN=2296-858X