TY - JOUR T1 - New Challenging Scenarios in Transcatheter Aortic Valve Implantation: Valve-in-valve, Bicuspid and Native Aortic Regurgitation AU - Santos-Martínez, Sandra AU - Amat-Santos, Ignacio J DO - 10.15420/ecr.2021.12 UR - https://doi.org/10.15420/ecr.2021.12 JO - European Cardiology Review 2021;16:e29. Y1 - 2021 PB - Radcliffe Cardiology ER -