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. 2020 Jun;9(3):1366–1373. doi: 10.21037/tau-20-904

Table 3. Relationship between the expression of VEGF and CD73 and clinical stages of RCC (n).

Items n VEGF CD73
− + ++ +++ − + ++ +++
Clinical stages
   I–II 50 23 13 10 4 18 14 14 4
   III–IV 26 4 4 11 7 2 5 10 9
Z – 3.430 3.571
P – 0.001 0.000

VEGF, vascular endothelial growth factor; RCC, renal cell carcinoma.