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Relationship between microvessel count as determined with CD31 or CD34 immunostaining and vascular endothelial growth factor (VEGF) expression in non‐small cell lung cancer (NSCLC) (CD31‐microvessel density [MVD][γ = 0.4258, P = 0.008] and CD34‐MVD [γ = 0.3305, P = 0.045]).
