@article{Materia1999,
author = {Materia, E. and Spadea, T. and Rossi, L. and Cesaroni, G. and Area, M. and Perucci, C. A.},
title= {Health care inequalities: hospitalization and socioeconomic position in Rome},
year = {1999},
journal = {Epidemiologia e Prevenzione },
volume = {23},
number = {3},
pages = {197--206},
}