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Hand holding a pipette dropping a sample in a test tube

Stock Photo:
Image ID: 69701185
Copyright:
Small
332x500 4.6"x6.9" (72dpi) 205 KB
Med
664x1000 2.2"x3.3" (300dpi) 686 KB
Large
1328x2000 4.4"x6.7" (300dpi) 1.8 MB
Super
2656x4000 8.9"x13.3" (300dpi) approx.4.5 MB
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