1. Department of Medicine, University of California San Francisco Medical Center-Fresno Campus, Fresno, California, USA
2. Department of Public Health, University of California, Merced, California, USA
3. Health Sciences Research Institute, University of California, Merced, California, USA
4. Department of Internal Medicine, Loma Linda University School of Medicine, Loma Linda California, USA
5. Department of Medicine, Division of Hematology & Oncology, Loma Linda University School of Medicine, Loma Linda California, USA