character: Dr. Laura Huang
topic: Ultrasound and Its Applications in Medicine
grade: 9
subject: Physics
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character: Dr. Emily Chen
topic: The Physics of Sound Waves in Medicine
grade: 9
subject: Physics
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character: Professor James Kim
topic: Medical Imaging Techniques: Beyond Ultrasound
grade: 9
subject: Physics
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character: Dr. Sarah Lee
topic: The Role of Doppler Effect in Medical Ultrasound
grade: 9
subject: Physics
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