TY - JOUR A1 - Wagstaff, A. A1 - Paci, P. A1 - van Doorslaer, E. T1 - On the measurement of inequalities in health Y1 - 1991 DO - 10.1016/0277-9536(91)90212-U JF - Social Science and Medicine VL - 33 IS - 5 SP - 545 EP - -557 ER -