Restrictive ventricular septal defect resulting in systemic outflow obstruction in adults with Fontan circulation: challenging diagnosis of a serious and potentially fatal complication. Issue 3 (March 2020) - Fusco, Flavia; Shimada, Eriko; Scognamiglio, Giancarlo; Senior, Roxy; Gatzoulis, Michael A.; Babu-Narayan, Sonya; Li, Wei