1. Center for Human Nutrition (E.F., F.M., B.W.P., B.M., S.K.), Washington University School of Medicine, St. Louis, Missouri 63110
2. Center for Clinical and Basic Research (E.F.), Department of Medical Sciences, Istituto di Ricovero e Cura a Carattere Scientifico, San Raffaele, 00163 Rome, Italy
3. Department of Nutrition and Dietetics (F.M.), Harokopio University, 17671 Athens, Greece