Resources Safety of botulinum toxin type: A systematic review and meta-analysis Botulinum Toxin A (Botox® Cosmetic) | American Journal of Clinical Dermatology BOTOX® (onabotulinumtoxinA) - Official BOTOX® Cosmetic Site-The rheology of injectable hyaluronic acid hydrogels used as facial fillers: A reviewVolumetric techniques: three-dimensional modelingCosmetic dermatology of the ageing face
