two men scientists pouring liquid test tube using microscope laboratory |
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| navigate by keyword : young man male adult person hispanic caucasian guy beard attractive science research medicine scientists experiment technology medical chemist biology analysis workers working test tube table standing two men together partners smiling confident measure measuring liquid measurement gloves glasses safety pouring pipette clinic center hospital room indoor indoors lab laboratory pharmacy chemistry |
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| Two men scientists pouring liquid on test tube using microscope at laboratory |
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