Prevalence and factors associated with bullying: differences between the roles of bullies and victims of bullying Georgia Rodrigues Reis e Silva; Maria Luiza Carvalho de Lima; Raquel Moura Lins Acioli; Alice Kelly Barreira;

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;

COVID¿19 and obesity in childhood and adolescence: a clinical review Carlos Alberto Nogueira¿de¿Almeida; Luiz A. Del Ciampo; Ivan S. Ferraz; Ieda R.L. Del Ciampo; Andrea A. Contini; Fábio da V. Ued;