1 Department of Medicine, Division of Internal Medicine, Creighton University School of Medicine, Omaha, NE, USA. Electronic address: hasaanahmed@creighton.edu.
2 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA.
3 Department of Family and Community Medicine, The Ohio State University College of Medicine, Columbus, OH, USA.
4 Department of Medicine, Division of Internal Medicine, Creighton University School of Medicine, Omaha, NE, USA.
5 Department of Medicine, Division of Cardiovascular Disease, Creighton University School of Medicine, Omaha, NE, USA.
6 Department of Cardiovascular Medicine, Baystate Medical Center, Springfield, MA, USA.