Exercise training in heart failure with reduced ejection fraction and permanent atrial fibrillation: a randomized clinical trial - Alves, Leandro S; Bocchi, Edimar Alcides; Chizzola, Paulo Roberto; Castro, Rafael Ertner; Salemi, Vera Maria Cury; Melo, Marcelo Dantas Tavares de; Andreta, Camila Rocon de Lima; Guimarães, Guilherme Veiga (Heart rhythm, 2022)