TY - JOUR A1 - Elstad, J. I. A1 - Øverbye, E. A1 - Dahl, E. T1 - Prospective register-based study of the impact of immigration on educational inequalities in mortality in Norway Y1 - 2015 DO - 10.1186/s12889-015-1717-2 JF - BMC Public Health VL - 15 IS - 364 ER -