The applicability and effectiveness of the cognitive behavioral therapy for insomnia (Smart CBT-I plus) online program in patients with insomnia disorder combined with anxiety and depression: a randomized controlled trial protocol - Zhao, Yating; Ge, Fangmei; Luo, Xin; Li, Jingru; Zhang, Jing; Ju, Yi; Zhang, Jie; Wang, Yong; Lyu, Dongbin; Qiu, Yiren; Yuan, Chengmei (Frontiers in Psychiatry, 2025)