Table 2.
Types of the selected papers
| Study | Percentage (%) | Number | References |
|---|---|---|---|
| Feasibility | 20 | 1 | (13) |
| Cross-sectional | 20 | 1 | (14) |
| Case | 20 | 1 | (15) |
| Interventional | 40 | 20 | (1, 2) |
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