Thompson, Katherine N., Oginni, Olakunle, Wertz, Jasmin, Danese, Andrea, Okundi, Malaika, Arseneault, Louise and Matthews, Timothy ORCID: 0000-0001-9955-6524 (2024) Social isolation and poor mental health in young people: testing genetic and environmental influences in a longitudinal cohort study. European Child and Adolescent Psychiatry. ISSN 1018-8827 (Print), 1435-165X (Online) (doi:https://doi.org/10.1007/s00787-024-02573-w)