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Table 1 Interpretation of the swallow-tail sign by 3 readers, y = swallow tail-sign present, n = swallow-tail absent

From: Ultra high-field SWI of the substantia nigra at 7T: reliability and consistency of the swallow-tail sign

Patient # R/L

reader 1

reader 2

reader 3

consensus

1

y/y

y/y

y/y

y/y

2

y/y

y/y

y/y

y/y

3

n/n

y/y

y/y

y/y

4

y/y

y/y

y/y

y/y

5

y/y

y/y

y/y

y/y

6

n/y

n/y

n/y

n/y

7

y/y

y/y

y/y

y/y

8

n/n

y/y

y/y

y/y

9

n/n

n/n

n/n

n/n

10

n/n

n/n

n/n

n/n

11

y/y

y/y

y/y

y/y

12

y/y

y/y

y/y

y/y

13

n/n

y/y

n/y

y/y