Figure 4.

CD4 and CD8 IHC in lung transplant rejection diagnosis and grading. Tissue sections were immnunohistochemically stained with CD4 and CD8 antibodies and showed contrast against the background. A: grade A1 rejection; B: grade A2 rejection; C: grade A3 rejection; D: grade A4 rejection. (x200).

Cheng et al. Diagnostic Pathology 2013 8:168   doi:10.1186/1746-1596-8-168
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