Clinical efficacy of paraspinal nerve block combined with transcranial direct current stimulation in postherpetic neuralgia 
ZHANG Yuqing, LIU Qianhan, YANG Sen, LI Xiaoqiang, CHEN Liping, SHEN Wen.
The Journal of Practical Medicine . 2023, (9): 1138 -1142 .  DOI: 10.3969/j.issn.1006⁃5725.2023.09.013