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United States Department of Agriculture

Agricultural Research Service

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Image Number D1416-2

Biologist Luisa Cheng and technician Thomas Henderson II use an inverted microscope to view nerve cells grown in the laboratory for use in assays to detect botulinum toxin.


Photo by Stephen Ausmus.

640 pixels wide: (d1416-2.jpg)

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Last Modified: 8/13/2016
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