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Lateral Extensions of the Frontalis
| Section Intervala | 2-5 | 2-6 | 2-7 | 2-8 | 2-9 | 2-10 |
|---|---|---|---|---|---|---|
| No. (%) of cases | 49 (100%) | 47 (95.9%) | 34 (69.4%) | 11 (22.4%) | 3 (6.1%) | 0 (0%) |
Injections of botulinum neurotoxin type A into sections 2 and beyond avoid the region where the orbicularis oculi overlaps the frontalis. aSections 1 to 9 were defined as distances of 0 to 1, 1 to 2, 2 to 3, 3 to 4, 4 to 5, 5 to 6, 6 to 7, 7 to 8, and 8 to 9 cm from FT along L2, respectively.
