@article{Karp2004,
author = {Karp, A. and Kåreholt, I. and Qiu, C. and Bellander, T. and Winblad, B. and Fratiglioni, L.},
title= {Relation of education and occupation-based socioeconomic status to incident Alzheimer's disease},
year = {2004},
doi = {10.1093/aje/kwh018},
journal = {American Journal of Epidemiology},
volume = {159},
number = {2},
pages = {175--183},
}