Derivation of splenic CD4⁺ and CD8+ cells following allogeneic CLP cotransplantation. Mean splenic CD4⁺ (A) and CD8+ (B) count and derivation of mice that received HSC transplants (bar a) and mice that received CLP cotransplants (bar b) (n = 5-9 mice in each group per time point). ▦ indicates CLP-derived CD4⁺ or CD8⁺ cells; and •, non-CLP-derived cells. *P = .01 for non-CLP-derived cells.