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56.8 MB (1.3 MB compressed)
5249 x 3783 pixels
44.5 x 32.0 cm ⏐ 17.5 x 12.6 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Activated platelets, coloured scanning electron micrograph (SEM). These cells are involved in blood clotting. Magnification: x4000 when printed at 10 centimetres wide.
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