Laboratory, instrument noise:
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Hospital, water filtration system
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Surgical suction device
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EEG, pencil movement
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Doctors voices, Hospital, operation, suction
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Dentist drilling teeth
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Blood transfusion apparatus
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An empty cart for the sick
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Hospital, operation, cardiomonitor, doctors
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Sphygmomanometer, measure pressure
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Dentist brushing teeth
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Fluoroscopy
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Dentist Suction Tube
★★★★★