Prevalence of childhood obesity in Brazil: systematic review and meta-analysis Carolina Muller Ferreira; Natália Dutra dos Reis; Andresa de Oliveira Castro; Dorotéia Aparecida Höfelmann; Kátia Kodaira; Marcus Tolentino Silva; Tais Freire Galvao;

Low back pain in adolescents and association with sociodemographic factors, electronic devices, physical activity and mental health Thiago Paulo Frascareli Bento; Guilherme Porfirio Cornelio; Priscila de Oliveira Perrucini; Sandra Fiorelli Almeida Penteado Simeão; Marta Helena Souza de Conti; Alberto de Vitta;

Development and validation of an instrument for monitoring child development indicators Sonia I. Venancio; Maritsa C. Bortoli; Paulo G. Frias; Elsa R.J. Giugliani; Cláudia R.L. Alves; Miriam O. Santos;