Vitamin D Status in Children with Primary Immunodeficiency Disorders Receiving Vitamin D Supplementation: A Retrospective Cross-Sectional Study
Background: Vitamin D plays an important immunomodulatory role, and vitamin D deficiency has been associated with an increased risk of infections and autoimmune disorders. Although patients with some primary immunodeficiency disorders (PID) exhibit higher rates of vitamin deficiency, there are currently no evidence-bas...