Dentist rinsing the mouth with water:
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Ventilator, Cardiomonitor
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Measure pressure, Sphygmomanometer
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Fluoroscopy
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Pencil movement, EEG
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Hospital, water filtration system
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Blood analyzer
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Make a hospital bed
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Hydraulic hospital bed
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Instrument noise, Laboratory
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Dentist working with tools
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Small crowd in the hospital room, talking
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Dentist drilling teeth
★★★★★