1. Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) UMR_S 1085, F-35000Rennes, France
2. MRC Centre for Reproductive Health, University of Edinburgh, The Queens Medical Research Institute, 47 Little France Crescent, EdinburghEH16 4TJ, UK
3. CHU Rennes, Service Gynécologie et Obstetrique, F-35000Rennes, France
4. Novo Nordisk Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
5. EHESP—School of Public health, Avenue du Professeur Léon-Bernard, F-35043Rennes, France