title: [On the biological activity of provitamin D3].
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood; D000818:Animals; D001842:Bone and Bones / Q000378:metabolism; D002118:Calcium / Q000097:blood; D002645:Chickens; D002762:Cholecalciferol / Q000627:therapeutic use; D002776:Cholestanes / Q000528:radiation effects / Q000627:therapeutic use*; D008027:Light; D008670:Metals / Q000378:metabolism; D010758:Phosphorus / Q000097:blood; D012279:Rickets / Q000188:drug therapy*; D013261:Sterols / Q000528:radiation effects / Q000627:therapeutic use*
chemical_list: D002776:Cholestanes; D008670:Metals; D013261:Sterols; D002762:Cholecalciferol; D010758:Phosphorus; D000469:Alkaline Phosphatase; D002118:Calcium
vernacular_title: Pro biolochichnu aktyvnist' previtaminu-3.