Bhatt SP, anchez-Ferrero GV-S, Rahaghi FN, Maclean ES, Gonzalez-Serrano G, Come CE, Kinney GL, Hokanson JE, Budoff MJ, Cuttica MJ, et al. Cardiac Morphometry on Computed Tomography and Exacerbation Reduction with β-Blocker Therapy in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med. 2017;196(11):1484–1488.