[On the question of penicillin resistence].
D001431:Bacteriological Techniques; D004917:Erythromycin; D010068:Oxacillin; D010400:Penicillin G; D010403:Penicillin Resistance
D004917:Erythromycin; D010400:Penicillin G; D010068:Oxacillin
Zur Frage der Penicillin-Resistenz.