Aberrant Expression of the Costimulatory Molecule CD40 Ligand on Monocytes from Patients with Systemic Lupus Erythematosus - Katsiari, Christina G.; Liossis, Stamatis-Nick C.; Souliotis, Vassilis L.; Dimopoulos, Athanasios M.; Manoussakis, Menelaos N.; Sfikakis, Petros P. (Clinical Immunology, 2002)