Intraoperative radiotherapy in early breast cancer: Observational comparison with whole breast radiotherapy José Ramón Oliver Guillén; Ernesto Hernando Almudi; Guadalupe Molina Osorio; Reyes Ibañez Carreras; José Antonio Font Gómez; Isabel Vicente Gómez; Carmen García Mur; María Carmen Casamayor Franco;

Care burden and outcome of the surgical management of ulcerative colitis: A retrospective analysis of the last 20 years in a tertiary hospital in Spain Ignacio Aguirre-Allende; Jose M. Enríquez-Navascués; Garazi Elorza; Ane Etxart; Ainhoa Echeveste; Nerea Borda-Arrizabalaga; Carlos Placer; Yolanda Saralegui;

LIFT procedure for posterior fistula-in-ano. Are outcomes good enough? A systematic review and meta-analysisis of observational studies Carlos Placer Galán; Ignacio Aguirre; Tania Pastor; Ane Etxart; Jose María Enriquez Navascués;