Local Excision for organ preservation in early REctal cancer with No Adjuvant treatment (LORENA Trial): prospective observational study protocol Rodrigo Tovar Pérez; Carlos Cerdán Santacruz; Óscar Cano-Valderrama; Fernando Jiménez Escovar; Blas Flor Lorente; Rodrigo O. Perez; Javier García Septiem;

Multicenter clinical trial for the resection of rectal polyps using a new laparoendoscopic hybrid transanal access device José Francisco Noguera Aguilar; Alba Gómez Dovigo; Javier Aguirrezabalaga González; Benito González Conde; Pedro Alonso Aguirre; David Martínez Ares; Javier Sánchez González; María Pilar Díez Redondo; Olga Maseda Díaz; Maria Ignacia Torres García; Andrés Dacal Rivas; Salvadora Delgado Rivilla; Juan Manuel Romero Marcos; Pablo Ramírez Ruíz; Pedro de María Pallarés; Mario Álvarez Gallego; Inmaculada Gómez Besteiro;

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;