Physical activity and quality of life of children and adolescents with juvenile idiopathic arthritis, juvenile systemic lupus erythematosus and juvenile dermatomyositis during the COVID-19 pandemic Renata Soares; Fabiana de Carvalho Silva; Jade Dib Fernandez; Melissa Mariti Fraga; Maria Teresa Terreri; Claudio Arnaldo Len;

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;