@article{Griffiths2004,
author = {Griffiths, P.L. and Brown, J.J. and Smith, W.F.},
title= {A comparison of univariate and multivariate multilevel models for repeated measures of use of antenatal care in Uttar Pradesh},
year = {2004},
doi = {10.1111/j.1467-985X.2004.00602.x},
volume = {167},
number = {4},
pages = {597--611},
}