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Glabellar lines
Compare the procedure groups used for this indication, ranked by evidence score. Grade reflects the volume and quality of research; direction reflects what the papers conclude.
| Grade | Score | Direction | Procedure group | RCT & meta | Clinical & observational | Case reports | Total papers |
|---|---|---|---|---|---|---|---|
| A | 69.5 | Supported | Botulinum toxin a | 117 | 37 | 17 | 313 |