character: Dr. James Lee
topic: Electrophysiology of Heart Cells
grade: 11
subject: Science
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character: Dr. Emily Chen
topic: Cardiac Action Potentials
grade: 11
subject: Science
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character: Dr. Robert Smith
topic: Ion Channels in Heart Muscle
grade: 11
subject: Science
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character: Dr. Sarah Johnson
topic: Heart Cell Signaling Mechanisms
grade: 11
subject: Science
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