Loneliness Trajectories, Associated Factors and Subsequent Health in Children and Young People During the COVID-19 Pandemic: A National Matched Cohort Study - Schneider, V; Norris, T; Nugawela, M; Dalrymple, E; Hargreaves, D; Kall, A; McOwat, K; Shafran, R; Stephenson, T; Xu, L (PSYCHOLOGY RESEARCH AND BEHAVIOR MANAGEMENT, 2023)