Table 7.
Design of included studies.
| Design | Number of studies |
|---|---|
| Case series/reports | 50 |
|
| |
| RCT | 12 |
|
| |
| Non-controlled before-after study | 8 |
|
| |
| NRCT | 3 |
|
| |
| ITS | 1 |
|
| |
| Review | 1 |
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