| ABO | AbobotulinumtoxinA |
| AEAC | Aesthetic Ear Aging Classification |
| BoNT | Botulinum Toxin |
| BoNT-A | Botulinum Toxin type A |
| CO2 | Carbon dioxide |
| GAIS | Global Aesthetic Improvement Scale |
| HA | Hyaluronic Acid |
| ICC | Intraclass Correlation Coefficient |
| NSAIDs | Non-Steroidal Anti-Inflammatory Drugs |
| ONA | onabotulinumtoxinA |
| U | Units |
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