title: Development and application of an exchange assay for 1,25-dihydroxyvitamin D3.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D002117:Calcitriol / Q000032:analysis*; D002135:Calcium-Binding Proteins / Q000032:analysis; D002645:Chickens; D002843:Chromatin / Q000032:analysis; D007422:Intestines / Q000032:analysis; D010758:Phosphorus / Q000172:deficiency; D011869:Radioligand Assay; D018167:Receptors, Calcitriol; D011987:Receptors, Steroid / Q000032:analysis* / Q000187:drug effects
chemical_list: D002135:Calcium-Binding Proteins; D002843:Chromatin; D018167:Receptors, Calcitriol; D011987:Receptors, Steroid; D010758:Phosphorus; D002117:Calcitriol