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Blood samples kept in test tubes for screening in the lab.

Stock Photo:
Image ID: 4964752
Release Information: N/A
Copyright: Wei Ming
Small
500x334 6.9"x4.6" (72dpi) 208 KB
Med
1000x667 3.3"x2.2" (300dpi) 680 KB
Large
2500x1667 8.3"x5.6" (300dpi) 2.0 MB
Super
5000x3334 16.7"x11.1" (300dpi) approx.4.8 MB
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