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Fig. 1


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Evolution of pain intensity of patients suffering from PTTN (n = 11). Mean pain intensity (M ± SEM) auto-evaluated using a numerical rating scale (NRS) from 0 to 10 is reported every hour during waking period. The curve represents the mean value of all patients measured over 8 consecutive days. Noteworthy is the quasi-linear increase in pain intensity throughout the day.

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