[Observations on the activity of a new antibiotic combination].
D000900:Anti-Bacterial Agents; D010400:Penicillin G; D010879:Piperazines; D012382:Rolitetracycline
D000900:Anti-Bacterial Agents; D010879:Piperazines; D012382:Rolitetracycline; D010400:Penicillin G
PENICILLIN G; PIPERAZINES; ROLITETRACYCLINE