[Progress in chemotherapeutic agents--penicillins].
D010403:Penicillin Resistance; D010406:Penicillins / Q000145:classification* / Q000494:pharmacology; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects
D010406:Penicillins