Research Article

Efficacy and Safety of Botulinum Toxin A and Pulsed Radiofrequency on Postherpetic Neuralgia: A Randomized Clinical Trial

Figure 3

The incidence of different pain characteristics pre- and postoperation in two groups. (a) Stabbing pain, (b) burning pain, (c) numbness, (d) electric shock pain, (e) allodynia, (d) spontaneous pain. vs. RF.
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