@article{Lawson2008,
author = {Lawson, David W and Mace, Ruth},
title= {Sibling configuration and childhood growth in contemporary British families},
year = {2008},
doi = {10.1093/ije/dyn116},
journal = {International Journal of Epidemiology},
volume = {37},
number = {6},
pages = {1408--1421},
}