Assertion: calcium's form | /r/HasProperty | vitamin d
Facets:
Source sentences:
text: The two major forms are vitamin D 2 or ergocalciferol, and vitamin D 3 or cholecalciferol; vitamin D without a subscript refers to either D 2 or D 3 or both.
text: The two major forms are vitamin D 2 or ergocalciferol, and vitamin D 3 or cholecalciferol; vitamin D without a subscript refers to either D 2 or D 3 or both.
text: Other forms (vitamin D 2 , alfacalcidol, and calcitriol) do not appear to have any beneficial effects with regard to the risk of death.