@article{Jefferis2002,
author = {Jefferis, B. and Power, C. and Hertzman, C.},
title= {Birth weight, childhood socioeconomic environment, and cognitive development in the 1958 British birth cohort study},
year = {2002},
doi = {10.1136/bmj.325.7359.305},
journal = {BMJ},
volume = {325},
number = {7359},
pages = {305--308},
}