@article{Patten2005,
author = {Patten, S. and Lee, R.},
title= {Describing the longitudinal course of major depression using Markov models: Data integration across three national surveys},
year = {2005},
doi = {10.1186/1478-7954-3-11},
journal = {Population Health Metrics},
volume = {3},
pages = {11},
}