Blood and faecal lead levels in children with various functional gastrointestinal disorders Nergiz Sevinc; Nam¿k Bilici; Eylem Sevinc; Erkan Dogan;

Functional gastrointestinal disorders frequency by Rome IV criteria Claudia Alonso-Bermejo; Josefa Barrio; Beatriz Fernández; Elena García-Ochoa; Almudena Santos; Marta Herreros; Cristina Pérez;

Pediatric research in Spain: Challenges and opportunities Laura Moreno-Galarraga; Cesar Gracía Vera; Irene Rivero-Calle; Federico Martinón-Torres; Ignacio Diez López; Fernando Cabañas; Cristina Calvo;