Transcutaneous auricular vagal nerve stimulation for consciousness recovery in patients with prolonged disorders of consciousness (TAVREC): study protocol for a multicenter, triple... oleh Jan D Reinhardt, Jin Liu, Ting Luo, Xiao Lu, Zhen-Yu Liu, Long-yun Zhou, Li-jun Peng, Ya-feng Liu, Shu-wei Wang, Yue Qiu, Si-jing Chen, Ming-ming Feng, Shan-shan Wu, Hui-juan Wu, Jiang-ping Ge