title: Zinc deficiency in acne vulgaris.
mesh_terms: D000152:Acne Vulgaris / Q000188:drug therapy*; D000293:Adolescent; D006801:Humans; D013752:Tetracycline / Q000627:therapeutic use*; D015032:Zinc / Q000627:therapeutic use*
chemical_list: D013752:Tetracycline; D015032:Zinc