Unmasking the burden of mental health symptoms and risk behaviors in Vietnamese adolescents: evidence from a multicenter cross-sectional study involving 2,631 high school students. - Thai TT; Le HV; Nguyen TT; Van Dinh N; Mai XL; Tran HT; Nguyen NT; Huynh KM; Bui HT; Duong MC (Social psychiatry and psychiatric epidemiology, 2026)