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Representative changes in porphyrin level before and after RIPC. Porphyrin was measured in the left index finger using a laser Doppler flowmetry imaging system before and after application of RIPC. Fluorescence at the wavelength of 710 nm corresponded to the level of porphyrin in the blood. The values of porphyrin fluorescence measured in an 18 years old healthy female volunteer before and after RIPC are shown in the table.
