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Synthesis of studies design included in review.
| Studies Design | Case Reports | Series of Cases | Non-Randomized Clinical Studies | Randomized-Clinical Studies |
|---|---|---|---|---|
| Representing % from the total No. of papers | 36.67% | 33.33% | 23.33% | 6.67% |
| No. of patients in 3DP group | 10 | 143 | 128 | 22 |
| No. of patients in control group | - | - | 233 | 24 |
