Older Adolescents Who Did or Did Not Experience COVID-19 Symptoms: Associations with Mental Health, Risk Perception and Social Connection. - Burrai J; Barchielli B; Cricenti C; Borrelli A; D'Amato S; Santoro M; Vitale M; Ferracuti S; Giannini AM; Quaglieri A (International journal of environmental research and public health, 2021)