1. INSERM, Centre for Research in Epidemiology and Population Health, Hôpital Paul Brousse, Villejuif Cedex, France
2. University Versailles St-Quentin-en-Yvelines, Versailles, France
3. Assistance Publique-Hopitaux de Paris, Department of Nutrition, Ambroise Paré Hospital, Boulogne-Billancourt, France
4. Department of Epidemiology and Public Health, University College London, London, U.K.
5. Centre de Gérontologie, Hôpital Ste Périne, Assistance Publique-Hopitaux de Paris, Paris, France