MACHINE LEARNING PREDICTING ATRIAL FIBRILLATION AS AN ADVERSE EVENT IN THE WARFARIN VERSUS ASPIRIN IN REDUCED CARDIAC EJECTION FRACTION (WARCEF) TRIAL (Preprint) - Gue, Ying Xuan; Correa, Elon; Thompson, John L.P; Homma, Shunichi; Qian, Min; Lip, Gregory Y.H. (JMIR AI, 2022)