Assessment of vitamin D levels in children who admitted to pediatric outpatient clinics by age, gender and seasons in Şırnak province, Turkey. Baghdad J. Biochem. Appl. Biol. Sci. [Internet]. 2023 Apr. 29 [cited 2026 May 1];4(02):50-8. Available from: https://mail.bjbabs.org/index.php/bjbabs/article/view/195