TY - JOUR A1 - Rajaratnam, J.K. A1 - Tran, L.N. A1 - Lopez, A.D. A1 - Murray, C.J. T1 - Measuring under- five mortality: validation of new low-cost methods Y1 - 2010 DO - 10.1371/journal.pmed.1000253 VL - 7 ER -