@article{White2010,
author = {White, Ian R. and Carlin, John B.},
title= {Bias and efficiency of multiple imputation compared with complete-case analysis for missing covariate values},
year = {2010},
doi = {10.1002/sim.3944},
journal = {Statistics in Medicine},
volume = {29},
number = {28},
pages = {2920--2931},
}