Treatment of Chronic Pelvic Pain Due to Endometriosis by Transcutaneous Auricular Vagus Nerve Stimulation

"Transcutaneous Auricular Vagus Nerve Stimulation has an eartip connected to an external stimulator. The device used in this study is the TENS Eco Plus commercialized by Schwa Medico and European Compliance (CE) marked.~The electrode is positioned in the cymba concha of the left ear."