1. Department of Medicine, Guthrie Clinic/Robert Packer Hospital, Sayre, 18840 PA, USA
2. Department of Family Medicine, Mercy Health, Janesville, WI, USA
3. Department of Cardiology, Guthrie Clinic/Robert Packer Hospital, Sayre, PA, USA
4. Rutgers New Jersey Medical School, Newark, NJ, USA
5. Geisinger Commonwealth School of Medicine, Scranton, PA, USA