african american man working lab scientist doctor making medical research laboratory tools microscope test tubes

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African-american man scientist doctor working in lab making medical research, using laboratory tools, microscope, test Royalty Free Stock Photo

Man working in lab. Scientist doctor making medical research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, Royalty Free Stock Photo

African-american man working in lab. Scientist doctor making medical research. Laboratory tools: microscope, test tubes Royalty Free Stock Photo

Male scientist working in modern lab. Doctor making microbiology research. Royalty Free Stock Photo

African-american man working in lab. Scientist doctor making medical research. Laboratory tools: microscope, test tubes

African american scientist doctor in white coat working with microscope, test tubes in laboratory, making notes on Royalty Free Stock Photo

African-american scientist working in lab. Doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and health care concept.