Effects of Dose and Injection Site for Gummy Smile Treatment With Botulinum Type A

NCT04820543 · clinicaltrials.gov ↗

PHASE4

Phase

COMPLETED

Status

55

Enrollment

OTHER

Sponsor class

Conditions

Smiling
Botulinum Toxins, Type A

Interventions

DRUG: injection of Botulinum type A

Sponsor

Peking University