87Spatiotemporal stability of non-pulmonary vein propagation patterns in persistent atrial fibrillation identified through novel dipole-density non-contact mapping before and after pulmonary vein isolation. (10th October 2018) - Pope, M T B; Bates, M G D; Gouda, S; James, S; Shepherd, E; Murray, S; Thornley, A R; Betts, T R