Fu, Y. “Systemic Immune-Inflammation Index and Depressive Symptoms in US Adults: Implications for Immunomodulatory Interventions—A Cross-Sectional Study from NHANES 2005–2020”. Trends in Immunotherapy, vol. 10, no. 1, Jan. 2026, pp. 217-31, doi:10.54963/ti.v10i1.2243.