Low Ventricular Stiffness Is Associated With Suboptimal Outcomes in Patients With a Single Right Ventricle After the Fontan Operation: A Novel Phenotype oleh Shahryar M. Chowdhury, Andrew M. Atz, Eric M. Graham, Varsha M. Bandisode, John F. Rhodes, Arni C. Nutting, Carolyn Taylor, Andrew Savage, Marc Hassid, Minoo Kavarana, Donald Menick