Asking the right questions.
Davidson
H Edward
HE
D000368:Aged; D000369:Aged, 80 and over; D000529:Complementary Therapies / Q000009:adverse effects / Q000379:methods*; D006801:Humans; D004366:Nonprescription Drugs / Q000008:administration & dosage / Q000627:therapeutic use*; D014807:Vitamin D / Q000627:therapeutic use; D014815:Vitamins / Q000627:therapeutic use
D004366:Nonprescription Drugs; D014815:Vitamins; D014807:Vitamin D