Hair cortisol concentration and mental health during childhood and adolescence: evidence that higher cortisol concentration is associated with externalizing problems in a large Brazilian population-based birth cohort. - Tovo-Rodrigues, Luciana; Goularte, Laura Moreira; Bierhals, Isabel Oliveira; Santos, Iná S.; Martins-Silva, Thais; Rohde, Luis Augusto; de Oliveira, Isabel Oliveira; Gonzalez, Andrea; Matijasevich, Alicia; Murray, Joseph (European Child & Adolescent Psychiatry, 2025)