TY - JOUR A1 - De Vogli, R. A1 - Gimeno, D. A1 - Martini, G. A1 - Conforti, D. T1 - The pervasiveness of the socioeconomic gradient of health Y1 - 2007 DO - 1007/s10654-006-9097-7 JF - European Journal of Epidemiology VL - 22 IS - 2 SP - 143 EP - -144 ER -