Cattaneo A, Williams C, Pallás-Alonso CRosa, Hernández-Aguilar MTeresa, Lasarte-Velillas JJosé, Landa-Rivera L, Rouw E, Pina M, Volta A, Oudesluys-Murphy AMarie. ESPGHAN's 2008 recommendation for early introduction of complementary foods: how good is the evidence?. Matern Child Nutr 2011;7(4):335-43.