1. Nutritional Epidemiology Program, National Institute of Health and Nutrition, 1-23-1 Toyama, Shinjuku-ku, 162-8636 Tokyo, Japan
2. Department of Nutrition and Life Science, Kanagawa Institute of Technology, 243-0292 Kanagawa, Japan
3. Health Promotion and Exercise Program, National Institute of Health and Nutrition, Tokyo, Japan
4. Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, 113-0033 Tokyo, Japan