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Fig. 3 | BMC Neurology

Fig. 3

From: Efficacy and safety of pulsed radiofrequency modulation of thoracic dorsal root ganglion or intercostal nerve on postherpetic neuralgia in aged patients: a retrospective study

Fig. 3

The changes in VAS of the two groups. VAS, visual analogue scale DRG group, dorsal root ganglion pulsed radiofrequency group, ICN group, Intercostal nerves radiofrequency group. *P < 0.050 compared to DRG group, **P < 0.010 compared to DRG group. PRF, pulsed radiofrequency. DRG, dorsal root ganglion. ICN, intercostal nerve. VAS, Visual Analogue Scale

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