|
Authors
|
Selection
|
Comparability
|
Exposure
|
|---|
|
Katsuura2001 et al [35]
| ★★★★ | ★★ | ★★★ |
|
Kim2015 et al [36]
| ★★★★ | ★★ | ★★★ |
|
Lee2015 et al [37]
| ★★★★ | ★★ | ★★★ |
|
Li2014 et al [38]
| ★★★★ | ★★ | ★★ |
|
Song2014 et al [39]
| ★★★ | ★★ | ★★★ |
|
Song2018 et al [40]
| ★★★★ | ★★ | ★★ |
|
Yang2017 et al [41]
| ★★★ | ★★ | ★★★ |
