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A male medical or scientific researcher or doctor looking at a test tube of clear liquid in a laboratory with microscopes.

Stock Photo:
Image ID: 87855049
Release Information: Signed model release filed with Shutterstock, Inc
Copyright:
Small
500x334 6.9"x4.6" (72dpi) 151 KB
Med
1000x667 3.3"x2.2" (300dpi) 514 KB
Large
5616x3744 18.7"x12.5" (300dpi) 8.4 MB
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