Assertion: calcium's absorption | /r/CapableOf | vary with age
Facets:
Source sentences:
text: Oral: Minimal unless chronic, high doses are given; predominantly in the duodenum and dependent on calcitriol and vitamin D; mean absorption of calcium intake varies with age (infants 60%, prepubertal children 28%, pubertal children 34%, adults 25%); during pregnancy, calcium absorption doubles