革新的な治療。スマートハンサムな素敵な科学者は、顕微鏡の前に座って、新しい薬を開発しながら、錠剤を見て - ストックフォト＆画像

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Concentrated bearded scientist working with microscope in laboratory

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At the lab. Professional intelligent male scientist sitting in front of the microscope and doing the research while being at work

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My research. Serious brunette male lab assistant posing in profile while looking in microscope and studying sample

More samples. Merry gay male laboratorian grinning while getting vial and putting on safety glasses

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Successful experiment. Selective focus of male hand carried vial filled with liquid and man putting on safety glasses and grinning