1. Laboratory PACTE, University of Grenoble, Sandrine.Caroly@upmf-grenoble.fr, Le Patio, BP 47, 38 040 Grenoble Cedex 09, France
2. University of Lyon, France
3. Department of industrial relations, University Laval, Québec, Canada
4. Laboratory clinical activity, CNAM, 41 rue Gay Lussac, 75 005 Paris, France