Three-dimensional printing in robot-assisted radical prostatectomy - an Idea, Development, Exploration, Assessment, Long-term follow-up (IDEAL) Phase 2a study - Chandak,P; Byrne,N; Lynch,H; Allen,C; Rottenberg,G; Chandra,A; Raison,N; Ahmed,H; Kasivisvanathan,V; Elhage,O; Dasgupta,P (BJU International, 2018)