Heart monitor:
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An empty cart for the sick
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Surgery, make incisions
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Surgical suction device
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Hospital, water filtration system
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Blood transfusion apparatus
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Measure pressure, Electronic sphygmomanometer
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Medical laboratory, instrument noise
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Dentist drilling teeth
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Make a hospital bed
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Dentist brushing teeth
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Laboratory, instrument noise
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Throwing a sizzling tablet into a glass,
★★★★★