Dentist drilling teeth:
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People’s voices, Hospital, hallway
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Electronic sphygmomanometer, measure pressure
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Hospital, nursing room, voices
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Make a hospital bed
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Rinsing the mouth with water,, Dentist
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Water filtration system, Hospital
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Cardiomonitor, ventilator
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Dentist brushing teeth
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Respiratory mask
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Surgical suction device
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An empty cart for the sick
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Couch driven patient
★★★★★