Internet-Based Cognitive Behavioral Therapy for Insomnia (ICBT-i) Improves Comorbid Anxiety and Depression-A Meta-Analysis of Randomized Controlled Trials. oleh Yuan-Yuan Ye, Yuan-Feng Zhang, Jia Chen, Juan Liu, Xun-Jun Li, Ya-Zhen Liu, Ying Lang, Ling Lin, Xin-Ju Yang, Xiao-Jiang Jiang