1. From the Department of Preventive Medicine (D.-H.L.), School of Medicine, Kyungpook National University, Daegu, Korea; the Division of Epidemiology (D.R.J.) and the Department of Laboratory Medicine and Pathology (M.D.G., M.W.S.), School of Public Health, University of Minnesota, Minneapolis; and the Department of Nutrition (D.R.J.), University of Oslo, Norway.