Obstructive Sleep Apnea Is Common and Independently Associated with Atrial Fibrillation in Patients with Hypertrophic Cardiomyopathy - Pedrosa, Rodrigo P.; Drager, Luciano F.; Genta, Pedro R.; Amaro, Aline C. S.; Antunes, Murillo O.; Matsumoto, Afonso Y.; Arteaga, Edmundo; Mady, Charles; Lorenzi-Filho, Geraldo (Chest, 2010)