Evolution of Core Symptoms of Depression Disorders Among Chinese Adolescents Across Different Grades. - Song, Xiaoxiao; Li, Yaoyao; Wang, Xiaoyan; Wang, Xindi; Bao, Yanping; Zhang, Dianshun; Li, Zhiqiang; Meng, Chenxia; Wang, Changming; Zhang, Xiujun; Lyu, Shaobo; Kaura, Nikhat (Depression & Anxiety (1091-4269), 2025)