Vitamin D deficiency rickets in American children.
D002118:Calcium / Q000502:physiology; D006801:Humans; D007223:Infant; D010758:Phosphorus / Q000502:physiology; D012279:Rickets / Q000175:diagnosis* / Q000178:diet therapy / Q000209:etiology; D014481:United States; D014807:Vitamin D / Q000378:metabolism / Q000627:therapeutic use
D014807:Vitamin D; D010758:Phosphorus; D002118:Calcium