Sfyridis, P.G. Mylonas, K.S. Avramidis, D. Kontzoglou, K. Kouraklis, G. Rokkas, C.K. Sarris, G.E., Performing modified fontan before six years of age leads to superior long-term exercise capacity, Ελληνική καρδιολογική επιθεώρηση, (61), 351-353, 2020, Hellenic Cardiological Society, 1011-7970