France’s heat health watch warning system - Mathilde Pascal; Karine Laaidi; Martine Ledrans; Elsa Baffert; Céline Caserio-Schönemann; Alain Le Tertre; Jacques Manach; Sylvia Medina; Jérémie Rudant; Pascal Empereur-Bissonnet (International Journal of Biometeorology, 2006)