AUTHOR=Zhang Xiangqun , Shang Na , Zhang Da , Wu Junyuan , Guo Shubin TITLE=The independent predictive value of admission serum ferritin concentration for prognosis in elderly patients with community-acquired pneumonia in the emergency department JOURNAL=Frontiers in Cellular and Infection Microbiology VOLUME=14 YEAR=2025 URL=https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2024.1505207 DOI=10.3389/fcimb.2024.1505207 ISSN=2235-2988