man measuring oxygen level with modern fingertip pulse oximeter indoors closeup space for text |
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| navigate by keyword : adult background blood cardiac care check checking closeup copy corona coronavirus covid device electronic equipment finger fingertip hand health heartbeat hemoglobin indoors level male man measure measurement measuring medical medicine meter modern monitor monitoring oximeter oximetry oxygen pandemic person pressure pulse rate saturation screen space technology text using vital |
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| Man measuring oxygen level with modern fingertip pulse oximeter indoors. Space for text |
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