SEP 3, 2026 · JOURNAL ARTICLE
Comparative epidemiology of six respiratory pathogens among children aged 28 days to 14 years with acute respiratory infections in coastal Xiamen and inland Linxia, China: a multicenter retrospective study
Frontiers in Public Health
Retrospective descriptive epidemiology from a single calendar year with no clinical outcomes, control group, or intervention; establishes pathogen prevalence patterns but cannot determine causation, severity, or practice-relevant associations.