Realist review to understand the efficacy of school feeding programmes
Greenhalgh T., Kristjansson E., Robinson V.
A recent Cochrane review found that school feeding programmes significantly improve the growth and cognitive performance of disadvantaged children. Trisha Greenhalgh,Elizabeth Kristjansson, and Vivian Robinson look more closely at the highly heterogeneous trials to see what works, for whom, and in what circumstances. © 2007, BMJ Publishing Group Ltd. All rights reserved.