1. Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, Peoples Republic of China
2. Futaba Kosei Hospital, Fukushima, Japan
3. Health Care Center, Fukushima University, Fukushima, Japan
4. Department of Medicine, Georgetown University Medical Center, Washington, District of Columbia
5. Department of Pathology, Medical Automation Center, University of Virginia Health Science Center, Charlottesville, Virginia
6. Institute for Nephrology and Hypertension, Departments of Pediatrics and Physiology and Biophysics, Georgetown University Medical Center, Washington, District of Columbia