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. 2016 Jun 21;94(3):174–181. doi: 10.1159/000446608

Fig. 4.

Fig. 4

Positive QST findings (timing between stimulation combinations as per figure I). a Change in cold pain threshold after a mean of 38 minutes (±14) of PAG stimulation. Two-tailed paired t test (p = 0.2). b Change in dynamic allodynia score (Numeric Rating Scale) for each stimulation combination. * p < 0.05.