title: Letter: Side effects of long-term low-dosage tetracycline for acne.
mesh_terms: D000152:Acne Vulgaris / Q000188:drug therapy; D005260:Female; D006801:Humans; D008103:Liver Cirrhosis / Q000139:chemically induced; D008297:Male; D013752:Tetracycline / Q000008:administration & dosage / Q000009:adverse effects* / Q000627:therapeutic use; D013997:Time Factors
chemical_list: D013752:Tetracycline