Transauricular Vagus Nerve Stimulation for Postoperative Analgesia following Arthroscopic Shoulder Surgery: A Double-Blind, Randomized, Placebo-Controlled Trial. - Xia, Jia-yi; Hou, Xiao-min; Liu, Ke; Kong, Min; Ma, Ying; Saif, Dania; Ni, Hua-dong; Shen, Qi-hong (Pain & Therapy, 2025)