Dentist rinsing the mouth with water:
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Dentist Suction Tube
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Electronic sphygmomanometer, measure pressure
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An empty cart for the sick
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Dentist working with tools
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Blood transfusion apparatus
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Laboratory, instrument noise
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Heart monitor
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Hospital, doctors voices, operation, suction
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Water filtration system, Hospital
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Couch driven patient
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Respiratory mask
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EEG, pencil movement
★★★★★