1. Department of Internal MedicineReading Health System, West Reading, PA, USA
2. Department of Internal MedicineSaint Agnes Hospital, Baltimore, MD, USA
3. Division of Cardiovascular DiseasesMayo Clinic, Scottsdale, AZ, USA
4. Department of Internal MedicineCollege of Medical Sciences, Bharatpur, Nepal
5. Department of Internal MedicineNanjing Medical University, Nanjing, China
6. Department of Hematology and OncologyUniversity of Nebraska Medical Center, Omaha, NE, USA