Fig. 3From: Have inequalities in all-cause and cause-specific child mortality between countries declined across the world?Under-five mortality rate by GDP per capita (a) under-five mortality rate by GDP per capita in 2000 and 2015 (among all quintiles) (b) under-five mortality rate by GDP per capita in 2000 and 2015 (among 1st, 2nd and 3rd quintiles)Back to article page