Fig. 5. Flow cytometry analysis of stage-specific lymphocyte markers. (A) Thymocytes stained with anti-CD4 and anti-CD8 antibodies. (B) Lymph node cells stained with anti-CD4 and anti-CD8 antibodies. (C) Bone marrow cells stained with anti-B220 and anti-CD43 antibodies. (D) Splenocytes stained with anti-B220 and anti-IgM antibodies.