The Lancet  
Sep 14, 2013  Volume 382  Number 9896  p913 – 998
http://www.thelancet.com/journals/lancet/issue/current

Editorial
Closing the killer gap in children’s health inequality
The Lancet
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Globally, the pervasive disparities in the health and wellbeing of children are detrimental not only to the poorest and most vulnerable children and their families and communities, but also to the whole of society. To eliminate such disparities, three major questions need to be answered. How wide is the health gap? What are the underlying and driving factors? What can be done?