@article{articlea9782219,
title   = {Role of CD28 in polyclonal and specific T and B cell responses required for protection against blood stage malaria},
author = {Elias, Rosa M. and Sardinha, Luiz R. and Bastos, Karina R. B. and Zago, Cláudia A. and Silva, Ana Paula Freitas da and Alvarez, José Maria and Lima, Maria Regina D'Império},
year = {2005},
journal   = {Journal of Immunology}
}