A prospective and randomized study comparing ultrasound‐guided real time injection to conventional blind injection of botulinum neurotoxin for glabellar wrinkles

Background Botulinum neurotoxin injections are the most frequently performed cosmetic procedures, but conventional blind injection for glabellar wrinkles remains to have some limitations. Aims We intend to directly inject botulinum neurotoxin into the glabella complex guided by real time ultrasound....

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