Clinical Factors and Serum Biomarkers Associated With Major Depressive Disorder in Adolescents With and Without Nonsuicidal Self-Injury: A Comparative Cross-Sectional St. - Zhao, Shengjiao; Dong, Xiaodan; Lu, Jiahui; Wu, Yanyan; Fang, Ping; Zhang, Yu; Mou, Yujian; Xie, Haiyan (Alpha Psychiatry, 2026)