%0 Journal Article %T A competitive protein-binding assay for 25-hydroxycholecalciferol and 25-hydroxyergocalciferol in serum. %A Preece, M A %A O'Riordan, J L %A Lawson, D E %A Kodicek, E %J Clinica chimica acta; international journal of clinical chemistry %V 54 %N 2 %P 235-242 %@ 0009-8981 %D 1974-11-08 %~ DeepDyve