Correlation between Glomerular Filtration Rate And Serum Erythropoietin Level in Children with Advanced (Stages 3 to 5) Chronic Kidney Disease with Anemia: A Cross-sectional Study. The Insight [Internet]. 2026 Jun. 5 [cited 2026 Jul. 11];9(02):381-7. Available from: https://www.bdjournals.org/insight/article/view/1222