title: Serum concentrations of 25-hydroxyvitamin D and 24,25-dihydroxyvitamin D in patients with cystic fibrosis.
mesh_terms: D003550:Cystic Fibrosis / Q000097:blood*; D004100:Dihydroxycholecalciferols / Q000097:blood*; D006801:Humans; D006887:Hydroxycholecalciferols / Q000097:blood*
chemical_list: D004100:Dihydroxycholecalciferols; D006887:Hydroxycholecalciferols