Analitis A, Michelozzi P, D'Ippoliti D, De'Donato F, Menne B, Matthies F, Atkinson RW, I?iguez C, Basaga?a X, Schneider A, Lefranc A, Paldy A, Bisanti L, Katsouyanni K. Effects of heat waves on mortality: effect modification and confounding by air pollutants. Epidemiology. 2014 Jan; 25(1):15-22.