TY - JOUR A1 - Aaby, P. A1 - Martins, C.L. A1 - Garly, M. A1 - Rodrigues, A. A1 - Benn, C.S. A1 - Whittle, H. T1 - The optimal age of measles immunisation in low-income countries: a secondary analysis of the assumptions underlying the current policy Y1 - 2012b DO - 10.1136/bmjopen-2011-000761 JF - BMJ Open VL - 2 IS - e000761 ER -