Falasconi, G Penela, D Soto-Iglesias, D Jáuregui, B Chauca, A Antonio, RS Ordoñez, A Teres, C Carreño, JM Scherer, C Viveros, D Huguet, M Torres, J Vergara, P Maldonado, G Panaro, A Cámara, O Berruezo, A A standardized stepwise zero-fluoroscopy approach with transesophageal echocardiography guidance for atrial fibrillation ablation. J. Interv. Card. Electrophysiol. 10.1007/s10840-021-01086-9 2021 2021