COVID-19 School Closures and Peer Violence in Adolescents in 42 Countries: Evidence from the Health Behaviour in School-Aged Children Study - Walsh, Sophie D.; Elgar, Frank; Craig, Wendy; Cosma, Alina; Donnelly, Peter D.; Harel-Fisch, Yossi; Molcho, Michal; Malinowska-Cieslik, Marta; Ng, Kwok; Pickett, William (International Journal of Bullying Prevention, 2025)