Update of the Spanish clinical practice guideline for urinary tract infection in infants and children. Summary of recommendations for diagnosis, treatment and follow-up Juan David González Rodríguez; Gloria María Fraga Rodríguez; César Joaquín García Vera; Andrés Gómez Fraile; Juan Ignacio Martín Sánchez; José María Mengual Gil; Carlos Ochoa Sangrador; Blanca Valenciano Fuentes; Joaquín Escribano Subías;

Prevalence of gastrointestinal symptoms in autism spectrum disorder: A meta-analysis Isabel Lasheras; Matias Real-López; Javier Santabárbara;

Critical appraisal (II): Application to scientific articles on therapeutic interventions, systematic reviews and meta-analyses Álvaro Gimeno Díaz de Atauri; María Salomé Albi Rodríguez; Elena Pérez González; Jaime Javier Cuervo Valdés; Juan Ruiz-Canela Cáceres; Javier González de Dios;