character: Howard Florey
topic: Development and Mass Production of Penicillin
grade: 10
subject: Science
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character: Alexander Fleming
topic: Discovery of Penicillin
grade: 10
subject: Science
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character: Penicillin
topic: Antibiotics and their Impact on Medicine
grade: 10
subject: Science
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character: Ernst Boris Chain
topic: Collaboration with Florey in Penicillin Research
grade: 10
subject: Science
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