CBCRisk model to determine the risk of contralateral breast cancer in sporadic breast cancer María Domingo Bretón; Marta Allué Cabañuz; Néstor Castán Villanueva; María Dolores Arribas del Amo; Ismael Gil Romea; Antonio Güemes Sánchez;

Risk factors for surgical failure in patients undergoing surgery for primary hyperparathyroidism Santiago Olguín Joseau; Ariel Arias; Agustín Garzón; Emiliano Peretti; Luis Guzmán; Marcelo Ruggieri;

Umbilical incisional hernias (M3): are trocar-site hernias different? Comparative analysis of the EVEREG registry¿ Ana Ciscar Belles; Touria Makhoukhi; Manuel López-Cano; Pilar Hernández Granados; José Antonio Pereira Rodríguez;