Mental health issues in adolescent mothers and young adult mothers: the Brazilian context Amanda Ferreira de Carvalho; Daniela Dal Forno Kinalski Guaranha; Bruna Marmett; Júlia Mathias Reis; Carmem Lisiane Escouto de Souza; Bruna Silveira da Rosa; Tiago Chagas Dalcin; Sérgio Luis Amantea;

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;

Physical and mental health impacts during COVID-19 quarantine in adolescents with preexisting chronic immunocompromised conditions Livia Lindoso; Camilla Astley; Ligia Bruni Queiroz; Bruno Gualano; Rosa Maria Rodrigues Pereira; Uenis Tannuri; Lúcia Maria Mattei de Arruda Campos; Benito Lourenço; Ricardo Katsuya Toma; Karina Medeiros; Andréia Watanabe; Patricia Moreno Grangeiro; Vera da Penha Martellini Ferrari Rego Barros; Caio Borba Casella; Sylvia Farhat; Guilherme Vanoni Polanczyk; Clovis Artur Silva;