title: Vitamin deficiency.
mesh_terms: D000293:Adolescent; D001361:Avitaminosis / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D002648:Child; D006801:Humans; D009751:Nutritional Requirements; D014815:Vitamins / Q000627:therapeutic use
chemical_list: D014815:Vitamins