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Pooled analysis of the differential expression of EGFR and CA IX in three distance classes relative to the nearest tumour microvessel. EGFR was higher in near vs intermediate, near vs distant and intermediate vs distant classes (P<0.00001 for all three), whereas CA IX was higher in distant vs near and distant vs intermediate classes (P=0.01 and P<0.00001, respectively). Error bars indicate the s.d.
