Clostridium welchii resistance to tetracycline.
D000293:Adolescent; D003015:Clostridium Infections / Q000188:drug therapy; D003016:Clostridium perfringens / Q000187:drug effects*; D004342:Drug Hypersensitivity; D004917:Erythromycin / Q000494:pharmacology / Q000627:therapeutic use; D006801:Humans; D008297:Male; D010400:Penicillin G / Q000494:pharmacology / Q000627:therapeutic use; D010403:Penicillin Resistance; D013752:Tetracycline / Q000494:pharmacology* / Q000627:therapeutic use
D004917:Erythromycin; D013752:Tetracycline; D010400:Penicillin G