title: Studies on bladder stone disease in Egyptian children. IV. Evaluation of vitamin A status.
mesh_terms: D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005260:Female; D006801:Humans; D008297:Male; D001744:Urinary Bladder Calculi / Q000097:blood / Q000209:etiology*; D014801:Vitamin A / Q000097:blood; D014802:Vitamin A Deficiency / Q000150:complications*
chemical_list: D014801:Vitamin A