Table 2 Other studies with small sample sizes

Ali et al. [22]

21

12.4

Single centre retrospective

De Roeck et al. [23]

26

26

Single centre retrospective

Greinera et al. [24]

25

15.9 ± 9.4

Single centre retrospective

Inui et al. [25]

21

Single centre retrospective

Lagana et al. [26]

19

19.6

Single centre retrospective

van Haren et al. [27]

10

40 ± 24

Single centre retrospective