Surgery, make incisions:
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Couch driven patient
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Pencil movement, EEG
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Medical Device Warning
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Laboratory, instrument noise
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Hospital, water filtration system
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Sphygmomanometer, measure pressure
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Ventilator, Cardiomonitor
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Dentist rinsing the mouth with water
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Blood transfusion apparatus
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Medical laboratory, instrument noise
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Electronic sphygmomanometer, measure pressure
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An empty cart for the sick
★★★★★