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. 2020 Jul 26;26:510–516.

Table 2. Expression of VEGF、HIF-1α and STAT3 in pterygium subgroups and control group.

Group/Grade
  STAT3 (n)
HIF-1α (n)
VEGF (n)
+ ++ +++ + ++ +++ + ++ +++
pterygium
9
26
12
3
7
33
5
5
8
36
5
1
progressive
5
18
12
3
4
24
5
5
5
27
5
1
stationary
4
8
0
0
3
9
0
0
3
9
0
0
conjunctiva 12 8 0 0 15 5 0 0 17 3 0 0