title: Rickets in very low-birth-weight infants.
mesh_terms: D002118:Calcium / Q000097:blood / Q000627:therapeutic use; D005527:Food, Fortified; D006801:Humans; D007223:Infant; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000209:etiology*; D010758:Phosphorus / Q000097:blood / Q000627:therapeutic use; D012279:Rickets / Q000097:blood / Q000150:complications* / Q000178:diet therapy; D014807:Vitamin D / Q000627:therapeutic use
chemical_list: D014807:Vitamin D; D010758:Phosphorus; D002118:Calcium