confident smiling senior man scientist joyfully engaged phone talk standing lab immersed profound medical research |
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| navigate by keyword : senior man confident smiling scientist smartphone phone talking talk lab laboratory mature elder grey hair white male adult person portrait smile science research medicine experiment technology medical professional microscope chemist biology analysis work worker working test tube standing glasses cellphone mobile speaking conversation speak clinic center hospital room indoor indoors pharmacy chemistry |
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| Confident, smiling senior man scientist joyfully engaged in a phone talk, standing in a lab, immersed in profound medical research while smartly working with his trusty smartphone |
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