A method for showing antibacterial activity of minute quantities of gramicidin or penicillin.
D000900:Anti-Bacterial Agents; D006096:Gramicidin; D010406:Penicillins
D000900:Anti-Bacterial Agents; D010406:Penicillins; D006096:Gramicidin
GRAMICIDIN/antibacterial activity; PENICILLIN/minute quantity, antibacterial activity