Hauptman Paul J, McCann Patrick, Romero Jorge M Ramirez, Mayo Mary
Division of Cardiology, Saint Louis University School of Medicine, St Louis, Missouri2Department of Medicine, Saint Louis University School of Medicine, St Louis, Missouri.
JAMA Intern Med. 2013 Sep 9;173(16):1552-4. doi: 10.1001/jamainternmed.2013.7756.