Robotic assistance and general anaesthesia improve catheter stability and increase signal attenuation during atrial fibrillation ablation - Malcolme-Lawes,LC; Lim,PB; Koa-Wing,M; Whinnett,ZI; Jamil-Copley,S; Hayat,S; Francis,DP; Kojodjojo,P; Davies,DW; Peters,NS; Kanagaratnam,P (EUROPACE, 2013)