TY - JOUR A1 - Bonu, S. A1 - Manju, R. A1 - Baker, T.D. T1 - The impact of the National Polio Immunization Campaign on levels and equity in immunization coverage: Evidence from rural North India Y1 - 2003 DO - 10.1016/S0277-9536(03)00056-X JF - Social Science & Medicine VL - 57 IS - 10 SP - 1807 EP - -1819 ER -