Helicobacter pylori genotypes associated with gastric cancer and dysplasia in Colombian patients Y.H. Carlosama-Rosero; C.P. Acosta-Astaiza; C.H. Sierra-Torres; H.J. Bolaños-Bravo;

Simplified magnetic anchor-guided endoscopic submucosal dissection: an ex vivo porcine model M.Á. Ramírez-Ramírez; Y. Zamorano-Orozco; E.G. Beltrán-Campos;

Subcapsular hepatic hematoma after endoscopic retrograde cholangiopancreatography; a rare intraoperative finding E.R. Fernández-Enríquez; O. Bada-Yllán; M.A. López y López; R. Delano-Alonso; J.J. Herrera-Esquivel;