Is physical activity associated with resting heart rate in boys and girls? A representative study controlled for confounders Edner F. Zanuto; Raphael M. Ritti¿Dias; William R. Tebar; Catarina C. Scarabottolo; Leandro D. Delfino; Juliano Casonatto; Luiz Carlos M. Vanderlei; Diego Giulliano Destro Christofaro;

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;

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;