PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY PHILIPPE PSAILA / SCIENCE PHOTO LIBRARY
Refrigerated sample. Researcher's hand retrieving a sample from a refrigerated storage box. The sample has been stored using liquid nitrogen (temperatures of -198 degrees Celsius). Frost (white) is seen on the container. The sample is being used in biological research on diseases. Photographed at the Genethon Laboratory in France.
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