Urgent endoscopy versus early endoscopy: Does urgent endoscopy play a role in acute non-variceal upper gastrointestinal bleeding? Javier Lucas Ramos; Jorge Yebra Carmona; Irene Andaluz García; Marta Cuadros Martínez; Patricia Mayor Delgado; Maria Ángeles Ruiz Ramírez; Joaquín Poza Cordón; Cristina Suárez Ferrer; Ana Delgado Suárez; Nerea Gonzalo Bada; Consuelo Froilán Torres;

Correlation between endoscopy and intestinal ultrasound for the evaluation of postoperative recurrence of Crohn¿s disease Jorge Yebra Carmona; Joaquín Poza Cordón; Cristina Suárez Ferrer; Eduardo Martín Arranz; Javier Lucas Ramos; Irene Andaluz García; María Sánchez Azofra; José Luis Rueda García; María Dolores Martín Arranz;

Optimization of azathioprine dose in combined treatment with anti-TNF-alpha in inflammatory bowel disease Javier Lucas Ramos; Cristina Suárez Ferrer; Joaquín Poza Cordón; María Sánchez Azofra; Jose Luis Rueda García; Eduardo Martin Arranz; Jorge Yebra Carmona; Irene Andaluz García; Maria Dolores Martín Arranz;