control group:The electrode of the instrument was placed at the corresponding position, but no electrical stimulation was given.

Effects of transcutaneous vagal nerve stimulation combine with dry needling on sleep quality of patients with Cervical spondylosis

Effect of transcutaneous auricular vagus nerve stimulation on postoperative gastrointestinal dysfunction in patients undergoing laparoscopic radical resection of colorectal cancer - a single-center, randomized, double-blind, controlled trial