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Table 1 Our results in comparison with the previous works of Riggs and Rupp [18], El Khamlichi [22], Fisher [23] and Lazorthes et al [25].

From: Are the distributions of variations of circle of Willis different in different populations? – Results of an anatomical study and review of literature

Types

Riggs and Rupp [18]

El Khamlichi et al [22]

Fisher [23]

Lazorthes et al [25]

This study

1

192

18

20

29

29

2

54

0

0

10

0

3

91

11

6

9

0

4

88

14

24

28

20

5

41

6

12

10

4

6

126

24

131

44

28

7

67

10

58

34

4

8

38

2

0

3

0

9

47

3

4

5

1

10

33

1

16

6

0

11

2

0

10

0

0

12

20

1

1

3

1

13

5

0

3

1

0

14

7

0

1

1

0

15

35

4

0

4

1

16

16

3

2

2

0

17

26

0

46

3

2

18

58

0

21

6

0

19

17

1

28

1

1

20

10

1

5

0

0

21

13

0

10

1

0

22

3

0

8

0

0

Others

5

1

8

0

1