Calcium curious.  Commonly asked questions about a nutrient that generates a lot of them.
D001158:Arteries / Q000473:pathology; D002118:Calcium / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D019587:Dietary Supplements; D050723:Fractures, Bone / Q000517:prevention & control; D006801:Humans; D009369:Neoplasms / Q000139:chemically induced / Q000517:prevention & control; D014807:Vitamin D / Q000627:therapeutic use; D014815:Vitamins / Q000627:therapeutic use
D014815:Vitamins; D014807:Vitamin D; D002118:Calcium