confident smiling senior woman scientist with grey hair happy her work masterfully using microscope lab submitting |
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| navigate by keyword : middle age woman female adult elderly mature person senior greyhaired short hair happy confident smile smiling science research medicine scientist experiment technology medical professional microscope chemist biology analysis work worker working tube test table sitting zoom discover safety security sample looking glasses clinic center hospital room indoor indoors lab laboratory pharmacy chemistry |
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| Confident, smiling senior woman scientist with grey hair, happy at her work, masterfully using microscope in lab, submitting science to her mature wisdom in medical research center |
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