実験室の試験管の血液サンプルを見て眼鏡のアフリカ系アメリカ人科学者の選択的焦点 - ストックフッテージ&ビデオ
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Selective focus of african american scientist in glasses looking at sample through microscope in lab
Student medical researcher working with a microscope and test tubes in laboratory
Mixed race woman in lab coat and safety glasses working with microscope. She also using surgical pincers to take the plant leaf during the research.
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