Transcatheter closure of paravalvular leak: Multicenter experience and follow-up oleh Konstantinos Kalogeras, Konstantina Ntalekou, Konstantina Aggeli, Carmen Moldovan, Efstratios Katsianos, Charalambos Kalantzis, Evelina Bei, Christos Mourmouris, Konstantinos Spargias, Michail Chrissoheris, Petros Dardas, Konstantinos Aznaouridis, Afroditi Tzifa, Eustratios Theofilogiannakos, Gerasimos Siasos, Dimitrios Tousoulis, Manolis Vavuranakis