Abstract:Introduction. The aim of this study was to evaluate vitamin D levels between 12-24 monthold healthy children supplemented with vitamin D (400 IU/day) during the first year. Methods. Descriptive-sectional study conducted between June 2015, and May 2016, in Istanbul (latitude 41ºN). Children aged 12-24 months followed up by the well-child clinic who had vitamin D supplementation in the first year were included in the study. The levels of calcium, phosphorus, alkaline phosphatase, parathyroid hormone and 25-hydro… Show more
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