character: Mr. Lee
topic: Types of White Blood Cells and Their Functions
grade: 10
subject: Biology
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character: Mrs. Smith
topic: Immune System Overview
grade: 10
subject: Biology
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character: Dr. Brown
topic: Functions of Immune Cells
grade: 10
subject: Biology
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character: Ms. Johnson
topic: Introduction to Hematology
grade: 10
subject: Biology
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