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;

Sarcopenia in children and adolescents with chronic liver disease Ionar Figueredo Bonfim Rezende; Maria Ester P. Conceição-Machado; Viviane Sahade Souza; Elisana M. dos Santos; Luciana R. Silva;

Bladder and bowel symptoms experienced by children with osteogenesis imperfecta Gisele Martins; Maia Siedlikowski; Anna Kristina Silva Coelho; Frank Rauch; Argerie Tsimicalis;