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;

Prevalence of constipation in cystic fibrosis patients: a systematic review of observational studies Marina A. Stefano; Rosana E. Poderoso; Jochen G. Mainz; Jose D. Ribeiro; Antonio F. Ribeiro; Elizete Aparecida Lomazi;

Linking common mental disorders and asthma in Brazilian adolescents: a cross-sectional analysis of the ERICA study Mara Morelo Rocha Felix; Fábio Chigres Kuschnir; Érica Azevedo de Oliveira Costa Jordão; Bernardo Rangel Tura; Dirceu Solé; Maria Cristina Caetano Kuschnir;