@article{Adams2003,
author = {Adams, H.P. and Hurd, M.D. and McFadden, D. and Merrill, A. and Ribeiro, T.},
title= {Healthy, Wealthy, and Wise? Tests for Direct Causal Paths between Health and Socioeconomic Status},
year = {2003},
doi = {10.1016/S0304-4076(02)00145-8},
journal = {Journal of Econometrics},
volume = {112},
number = {1},
pages = {3--56},
}