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character: Professor Mark Harris
topic: The Discovery of Penicillin and Its Impact on Health
grade: 9
subject: Biology
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character: Alexander Fleming
topic: Discovery of Penicillin
grade: 9
subject: Biology
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character: Howard Florey
topic: Development of Penicillin for Medical Use
grade: 9
subject: Biology
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character: Ernst Boris Chain
topic: Penicillin and Antibiotic Resistance
grade: 9
subject: Biology
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