1 Department of Methodology and Innovation in Prevention, Bordeaux University Hospital, 33000 Bordeaux, France; University of Bordeaux, Inserm UMR 1219-Bordeaux Population Health, Bordeaux, France. Electronic address: michael.schwarzinger@chu-bordeaux.fr.
2 Aix-Marseille University, National Centre for Scientific Research (CNRS), School of Advanced Studies in the Social Sciences (EHESS), Ecole Centrale Marseille, Aix-Marseille School of Economics (AMSE), Marseille, France.