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Table 1 Age distribution of the subjects

From: Investigation of ossification in the posterior longitudinal ligament using micro-focus X-ray CT scanning and histological examination

Age

Male

Female

Total

30–39

1

1

2

40–49

5

3

8

50–59

7

4

11

60–69

22

9

31

70–79

21

10

31

80–89

13

6

19

90–99

0

1

1