Mental health difficulties and related factors in Chinese children and adolescents during the COVID-19 pandemic: a cross-sectional study Tongtong Li; Chunhao Li; Guoquan Zhang; Naijian Zhang; Jing Li; Qinghan Ren; Wen Li; Zhenshu Li; Guowei Huang; Jing Yan;

Consequences of the Covid-19 pandemic in children and adolescents with attention deficit hyperactivity disorder - a systematic review Janise Dal-Pai; Carolina Boeira Soares; Viviane Cardoso de Fraga; Aline Porto; Gustav Peter Foerster; Magda Lahorgue Nunes;

Lifestyle and quality of life in children and adolescents during the covid-19 social distancing period Catherine Pires de Araujo; Jefferson Piva; Amanda Vettoretti Nicoladeli; Jessica Paniz Hartwig; Ana Paula Radunz Vieira; Neusa Sica Rocha; Tais Sica Rocha;