![](http://www.alamy.com/thumbs/6/57167D99-4216-42EA-AE10-E4C90CD042CC/2E2N25C.jpg)
Test tubes and optical microscope. Laboratory instruments, with backlight and depth of field. Microscopic science and research concept.
Size: 8120px × 4150px
Photo credit: © Kiyoshi Takahase Segundo / Alamy / Afripics
License: Royalty Free
Model Released: No
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