LONG-TERM SAFETY AND EFFICACY OF MAVACAMTEN IN PATIENTS (PTS) WITH SYMPTOMATIC OBSTRUCTIVE HYPERTROPHIC CARDIOMYOPATHY (HCM): UPDATED RESULTS FROM THE PIONEER-OLE STUDY. - Masri, Ahmad; Lester, Steven J.; Stendahl, John; Hegde, Sheila M.; Sehnert, Amy; Balaratnam, Ganesh; Fox, Shawna; Wang, Andrew (Journal of the American College of Cardiology (JACC), 2023)