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研究室で働くアフリカ系アメリカ人の医師。薬学実験を行う科学アシスタント。実験室用具:顕微鏡、試験管、装置。化学、医学、生化学

研究室で働くアフリカ系アメリカ人の医師。薬学実験を行う科学アシスタント。実験室用具:顕微鏡、試験管、装置。化学、医学、生化学 - ストックフォト＆画像

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