Clinical and brain magnetic resonance imaging long-term follow-up in patients with cryptogenic stroke undergoing PFO closure with the NobleStitch EL system. A single-centre experience - Arrivi, Alessio; Pucci, Giacomo; De Paolis, Marcella; Principi, Massimo; Vaudo, Gaetano; Dominici, Marcello (Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej, 2022)