UTILIZATION AND TOLERANCE OF BETA-BLOCKERS AMONG PATIENTS WITH AL AMYLOIDOSIS. - Briasoulis, Alexandros; Stamatelopoulos, Kimon; Petropoulos, Ioannis; Theodorakakou, Fenia; Gavriatopoulou, Maria; Dimopoulos, Athanasios-Meletios; Kastritis, Efstathios (Journal of the American College of Cardiology (JACC), 2021)