File:TranscutaneousVagusNerveStimulation.png

Title: (or description)
Diagram of Transcutaneous Vagus Nerve Stimulation at Auricular Concha (ta-VNS, in red) compared to a placebo treatment (tn-VNS, blue)

Author: (or citation)
J. Yue, X. Guo, M. Luo et al., “Effect of transcutaneous Vagus Nerve stimulation at auricular Concha for Insomnia: a randomized clinical trial,” Evidence-Based Complementary and Alternative Medicine, vol. 2020, Article ID 6049891, 7 pages, 2020.

Source: (e.g. internet address)
https://doi.org/10.1155/2020/2536573