title: Levels of 25-hydroxyvitamin D (25-OH-D) in the blood serum of children in early years of life.
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood; D002118:Calcium / Q000097:blood; D002675:Child, Preschool; D006801:Humans; D006887:Hydroxycholecalciferols / Q000097:blood*; D007223:Infant; D010758:Phosphorus / Q000097:blood
chemical_list: D006887:Hydroxycholecalciferols; D010758:Phosphorus; D000469:Alkaline Phosphatase; D002118:Calcium