title: The Authors Respond.
authors.affiliation: Inserm UMR1027, Toulouse, France, University of Toulouse III, UMR1027, Toulouse, France, Centre Hospitalier Universitaire de Toulouse, Department of Epidemiology, Toulouse, France, benoit.lepage@univ-tlse3.fr University of Toulouse III, UMR1027, Toulouse, France, Toulouse Institute of Mathematics, UMR 5219, Toulouse, France Inserm UMR1027, Toulouse, France, University of Toulouse III, UMR1027, Toulouse, France, Centre Hospitalier Universitaire de Toulouse, Department of Epidemiology, Toulouse, France.
authors.forename: Benoît
authors.initials: B
authors.lastname: Lepage
authors.forename: Sébastien
authors.initials: S
authors.lastname: Lamy
authors.forename: Nicolas
authors.initials: N
authors.lastname: Savy
authors.forename: Thierry
authors.initials: T
authors.lastname: Lang