Serum Level of 25-Hydroxyvitamin D and Symptoms of Pica Among Adolescent School Children in Northern Sudan: A Cross-Sectional Study
{{output}}
Objectives. To assess levels of 25(OH)D among adolescents with symptoms of pica in northern Sudan. Methods. A cross-sectional study was conducted in North Sudan. Questionaries were used to collect adolescents' sociodemographics. The enzyme-linked immunosorbent... ...