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Illustration of the study design. “Short term” means exposure of whole blood from 27 individuals for 0.5 h, 1 h, and 1.5 h to either 4°C, 21°C, or 30°C. “Long term” means exposure of whole blood from 56 individuals for 2 h, 4 h, and 24 h to either 4°C, 21°C, or 30°C.
