Ultrasonographic analyses of Crow's feet and novel guideline for botulinum toxin injection.
Jiong-Zhen PiaoWook OhYou-Jin ChoiHyung-Jin LeeHyungkyu BaeKyung-Seok HuHyoung-Moon KimHee-Jin KimPublished in: Journal of cosmetic dermatology (2022)
The novel injection technique based on the ultrasonographic anatomy resulted in improvements in the appearance of crow's feet.