Effect of sleep duration on child development in Fortaleza, Northeastern Brazil Shamyr Sulyvan Castro; Marcia Maria Tavares Machado; Luciano Lima Correia; Simone Farias-Antúnez; Pedro Lucas Grangeiro de Sá Barreto Lima; Sophia Costa Vasconcelos; Elisa Rachel Pisani Altafim; Marcia C. Castro;

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;

Social and environmental effects of the COVID-19 pandemic on children Thiago Wendt Viola; Magda Lahorgue Nunes;