@article{McCaffrey2004,
author = {McCaffrey, D.F. and Ridgeway, G. and Morral, A.R.},
title= {Propensity score estimation with boosted regression for evaluating adolescent substance abuse treatment},
year = {2004},
doi = {10.1037/1082-989X.9.4.403},
volume = {9},
number = {4},
pages = {403--425},
}