@article{Berkey2007,
author = {Berkey, C. and Colditz, G.},
title= {Adiposity in adolescents: Change in actual BMI works better than change in BMI z-score for longitudinal studies},
year = {2007},
doi = {10.1016/j.annepidem.2006.07.014},
volume = {17},
number = {1},
pages = {44--50},
}