1. Department of Internal MedicineEast Tennessee State University Johnson City Tennessee
2. Division of Nephrology and Hypertension, Department of MedicineMayo Clinic Rochester Minnesota
3. Division of Gastroenterology and Hepatology, Department of MedicineMayo Clinic Jacksonville Florida
4. Department of Internal MedicineUniversity of Arizona Tucson Arizona
5. Department of Military and Community MedicinePhramongkutklao College of Medicine Bangkok Thailand
6. Clinical Epidemiology Unit, Department of Research and Development, Faculty of Medicine, Siriraj HospitalMahidol University Bangkok Thailand
7. Division of Nephrology, Department of MedicineUniversity of Mississippi Medical Center Jackson Mississippi