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Test tubes with various chemicals with researcher in the background

Stock Photo:
Image ID: 92637976
Release Information:
Signed model release filed with Shutterstock, Inc
Copyright: Shawn Hempel
Small
500x334 6.9"x4.6" (72dpi) 100 KB
Med
1000x667 3.3"x2.2" (300dpi) 316 KB
Large
5225x3483 17.4"x11.6" (300dpi) 1.3 MB
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