Yue Bi

Threshold-dependent relationship between serum 25-hydroxyvitamin D₃ and α-tocopherol in children aged 0–11 years: a cross-sectional study

Abstract Cholecalciferol (Vitamin D₃) and α-tocopherol (Vitamin E) are lipophilic micronutrients that co-regulate key physiological processes in childhood, including immune function, antioxidant defense, and skeletal development. However, their interdependent dose-response relati...