Determination of biological activity of 24,24-difluoro-1,25-dihydroxyvitamin D3 in the chick using a new method for assessing intestinal calcium uptake.
D000818:Animals; D002117:Calcitriol / Q000031:analogs & derivatives* / Q000494:pharmacology; D002118:Calcium / Q000378:metabolism*; D002645:Chickens; D004305:Dose-Response Relationship, Drug; D004386:Duodenum / Q000378:metabolism; D007408:Intestinal Absorption / Q000187:drug effects*; D010100:Oxygen / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology; D013997:Time Factors; D014808:Vitamin D Deficiency / Q000378:metabolism
D012965:Sodium Chloride; C023370:24,24-difluoro-1,25-dihydroxyvitamin D3; D002117:Calcitriol; D010100:Oxygen; D002118:Calcium