1. P-P21 Endoscopic bipolar radiofrequency ablation for treating biliary obstruction caused by unresectable cancer: systematic review of clinical and cost effectiveness. (16th December 2021) Authors: Beyer, Fiona; Rice, Stephen; Orozco-Leal, Giovany; Still, Madeleine; O'Keefe, Hannah; O'Connor, Nicole; Stoniute, Akvile; Craig, Dawn; Pereira, Stephen; Carr, Louise; Leeds, John Journal: British journal of surgery Issue: Volume 108:Supplement 9(2021) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗