character: Dr. Sarah Lee
topic: Tobacco and Its Role in Chronic Respiratory Conditions
grade: 11
subject: Biology
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character: Dr. John Smith
topic: The Effects of Smoking on Lung Health
grade: 11
subject: Biology
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character: Dr. Emily Chen
topic: Respiratory Diseases Caused by Environmental Factors
grade: 11
subject: Biology
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character: Dr. Michael Brown
topic: Understanding COPD and Its Risk Factors
grade: 11
subject: Biology
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