character: Dr. Sarah Lee
topic: Heart Anatomy and Function
grade: 10
subject: Biology
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character: Dr. John Smith
topic: Circulatory System Overview
grade: 10
subject: Biology
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character: Dr. Emily White
topic: Heart Disease and Prevention
grade: 10
subject: Biology
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character: Dr. Michael Brown
topic: Cardiovascular Physiology
grade: 10
subject: Biology
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