character: Dr. Mark Johnson
topic: Hormonal Regulation of Calcium Levels
grade: 11
subject: Biology
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character: Dr. Sarah Lee
topic: The Role of Parathyroid Hormone in Calcium Homeostasis
grade: 11
subject: Biology
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character: Dr. Emily Carter
topic: Vitamin D and Calcium Absorption in the Human Body
grade: 11
subject: Biology
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character: Dr. Alan Thompson
topic: Calcium Regulation by Calcitonin and Its Effects
grade: 11
subject: Biology
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