Inducible Costimulatory Molecule-B7-Related Protein 1 Interactions Are Important for the Clonal Expansion and B Cell Helper Functions of Naive, Th1, and Th2 T Cells

Inducible Costimulatory Molecule-B7-Related Protein 1 Interactions Are Important for the Clonal Expansion and B Cell Helper Functions of Naive, Th1, and Th2 T Cells