Comparison of the effectiveness and safety of polyethylene glycol with and without electrolytes in the treatment of chronic constipation Enrique Llerena, Vicente Varea Calderón, Gemma Pujol Muncunill, Karina Hernandez Hernandez, Franciso Javier Sosa Giraldo, Tacya Suarez Fuentes, Javier Martín de Carpi

Influence of constipation on enuresis María Rodríguez-Ruiz, Roberto Mendez-Gallart, Manuel García Mérida, Iván Somoza-Argibay

Methods of introduction of complementary feeding in the first year of life Cristina Campoy, Rosaura Leis