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Table 1 Retinal vessel tortuosity rated by 5 experts in the first round using a four-grade scale

From: Retinal vascular tortuosity assessment: inter-intra expert analysis and correlation with computational measurements

Grading

E1R1

E2R1

E3R1

E4R1

E5R1

0:none

34

10

21

20

31

1:mild

19

29

23

25

18

2:moderate

7

20

16

12

11

3:severe

0

1

0

3

0

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BMC Medical Research Methodology

ISSN: 1471-2288

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