VEGFA and neoplasm: In contrast, VEGF-A expression levels measured in tumor surface among the same group of patients were not associated with survival (log-rank P = 0.170; Fig. 1B), regardless of almost identical subgroup characteristics: the VEGF-A tumor depth subgroup with RQ > 2: n = 35 and mean = 7.05 ±5.38 versus the VEGF-A tumor surface subgroup with RQ > 2: n = 34 and mean = 7.17 ± 10.8.