character: Dr. Strong
topic: Calcium and Its Importance for Bones
grade: 11
subject: Science
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character: Dr. Smith
topic: Nutritional Components for Bone Health
grade: 11
subject: Science
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character: Ms. Green
topic: The Role of Vitamin D in Calcium Absorption
grade: 11
subject: Science
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character: Professor White
topic: Effects of Calcium Deficiency on Bone Density
grade: 11
subject: Science
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