TY - JOUR AU - Vanbiervliet, G; Filippi, J; Karimdjee, B S TI - The role of clips in preventing migration of fully covered metallic esophageal stents: a pilot comparative study JO - Surg Endosc VL - 26 PY - 2012 SP - 53 EP - 59 N1 - et al. ER -