Fig. 3
From: Dysautonomia and small fiber neuropathy in post-COVID condition and Chronic Fatigue Syndrome
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12967-023-04678-3/MediaObjects/12967_2023_4678_Fig3_HTML.png)
Heat and cold evoked potentials. The results shown are the mean of each group for the different tests. N refers to first definitive negative peak, and P to the first definitive positive peak after the trigger. ***p ≤ 0.001. HC: Healthy Controls; ME/CFS: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome