TY - JOUR A1 - Ukwuani, F.A. A1 - Cornwell, G.T. A1 - Suchindran, C.M. T1 - Polygyny and child survival in Nigeria: Age-dependent effects Y1 - 2002 DO - 10.1007/BF03031975 JF - Journal of Population Research VL - 17 IS - 2 ER -