1. American Society Plastic Surgeons Cosmetic Surgery National Data Bank http://www.surgery.org/sites/default/files/ASAPS-2011-Stats.pdf
2. EEMCO guidance for the assessment of skin topography. The European Expert Group on Efficacy Measurement of Cosmetics and other Topical Products;Lévêque;J Eur Acad Dermatol Venereol,1999
3. Update on treatment rationale and options for the ageing face;Dulguerov;Curr Opin Otolaryngol Head Neck Surg,2011
4. Fractional, nonablative Q-switched 1,064-nm neodymium YAG laser to rejuvenate photoaged skin: a pilot case series;Luebberding;J Drugs Dermatol,2012
5. Noninferiority of incobotulinumtoxinA, free from complexing proteins, compared with another botulinum toxin type A in the treatment of glabellar frown lines;Sattler;Dermatol Surg,2010