TURKISH ARCHIVES OF PEDIATRICS, vol.56, no.6, pp.618-623, 2021 (ESCI)
Background: Vitamin D deficiency is a major public health problem. The aim of our study was to determine serum 25-hydroxyvitamin D levels among healthy children aged 3-36 months in a setting where vitamin D prophylaxis is a national policy for infants during the first year of life and among pregnant women.