Age-Limited Effects of Low-Frequency Transcutaneous Electric Nerve Stimulation on Insomnia: A 4-Week Multi-Center, Randomized Controlled Study
Hyuk Joo Lee, Jung Kyung Hong, Hayun Choi, Seockhoon Chung, In-Young Yoon
Psychiatry Investig. 2022;19(6):451-461.   Published online 2022 Jun 15     DOI:
Efficacy of transcranial alternating current stimulation in treating chronic insomnia and the impact of age on its effectiveness: A multisite randomized, double-blind, parallel-group, placebo-controlled study
Xiaolin Zhu, Yanping Ren, Shuping Tan, Xin Ma
Journal of Psychiatric Research.2024; 170: 253.     CrossRef