Left atrial stiffness and strain are novel indices of left ventricular diastolic function in children: validation followed by application in multisystem inflammatory syndrome in children due to COVID-19. - Zuckerberg JC; Matsubara D; Kauffman HL; Chang JC; Calderon-Anyosa R; Patel C; Hogarty AN; Falkensammer CB; Mercer-Rosa LM; Quartermain MD; Wang Y; Banerjee A (European heart journal. Cardiovascular Imaging, 2023)