Table 2. Trials included in previous meta-analyses and the present study.
| Meta-Analysis Study | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Akai et al.13 | X | X | X | X | X | X | X | X | X | X | X | |||||||||||
| Mollon et al.16 | X | X | X | X | X | X | ||||||||||||||||
| Griffin et al.15 | X | X | X | X | ||||||||||||||||||
| Ebrahim et al.14 | X | X | X | X | X | X | X | X | ||||||||||||||
| Hannemann et al.51,60 | X | X | X | |||||||||||||||||||
| Aleem et al. | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
Barker et al.48, (2) Kane et al. (1988), (3) Mooney et al.55, (4) Sharrard et al.57, (5) Mammi et al.53, (6) Kennedy et al. (1993), (7) Traina et al.53, (8) Scott et al.56, (9) Capanna et al. (1994), (10) Rogozinski et al. (1996), (11) Goodwin et al.49, (12) Betti et al.43, (13) Linovitz et al.52, (14) Simonis et al.59, (15) Andersen et al. (Part 1)46, (16) Andersen et al. (Part 2)45, (17) Faldini et al.44, (18) Adie et al.47, (19) Hannemann et al.50, (20) Shi et al.58, (21) Hannemann et al.51,60, (22) Martinez-Rondanelli54.