@article{Grantham-McGregor2007,
author = {Grantham-McGregor, S. and Cheung, Y.B. and Cueto, S. and Glewwe, P. and Richter, L. and Strupp, B.},
title= {Developmental potential in the first 5 years for children in developing countries},
year = {2007},
doi = {10.1016/S0140-6736(07)60032-4},
journal = {The Lancet},
volume = {369},
number = {9555},
pages = {60--70},
}