Wibowo, S., Wulandari, K. T., & Amalia, N. (2026). The Effect of Vitamin D₃ Supplementation on Diarrhea Frequency, Duration, and Neutrophil-to-Lymphocyte Ratio (NLR) in Children with Diarrhea. Trends in Immunotherapy, 10(1), 130–143. https://doi.org/10.54963/ti.v10i1.1493