character: Dr. Sarah Johnson
topic: Antigen Presentation and MHC Molecules
grade: 12
subject: Biology
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character: Dr. Emily Carter
topic: Immune System and Adaptive Immunity
grade: 12
subject: Biology
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character: Dr. Michael Smith
topic: T Cell Development and Function
grade: 12
subject: Biology
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character: Dr. Anna Lee
topic: Cytokines and Immune Responses
grade: 12
subject: Biology
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