Figure 1From: Comparison of laser Doppler imaging, fingertip lacticemy test, and nailfold capillaroscopy for assessment of digital microcirculation in systemic sclerosisMean finger blood flow at baseline and after cold stimulus. Mean finger blood flow (FBF) at baseline and after cold stimulus (CS) in healthy controls and in systemic sclerosis (SSc) patients. P values correspond to the comparison between mean FBF at different time points after CS in relation to the baseline FBF. PU, perfusion units.Back to article page