1. Department of Epidemiology and Public Health University of Maryland School of Medicine Baltimore Maryland USA
2. Department of Medicine University of Maryland School of Medicine Baltimore Maryland USA
3. Kaiser Permanente Center for Health Research Portland Oregon USA
4. Department of Preventive Medicine Northwestern University Feinberg School of Medicine Chicago Illinois USA
5. Department of Epidemiology University of Iowa College of Public Health Iowa City Iowa USA
6. Department of Epidemiology and Biostatistics University of Maryland School of Public Health College Park Maryland USA
7. Department of Nutritional Science & Food Management Ewha Womans University Seoul South Korea
8. Graduate Program in System Health Science & Engineering Ewha Womans University Seoul South Korea
9. Department of Nutritional Sciences University of Hawaii at Manoa Honolulu Hawaii USA