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;

Tuberculosis in childhood and adolescence: a view from different perspectives Tony T. Tahan; Betina M.A. Gabardo; Andrea M.O. Rossoni;

Community-acquired pneumonia among children: the latest evidence for an updated management Cristiana M. Nascimento-Carvalho;