1. A randomized, double-blind, multicenter comparison of the efficacy and tolerability of Emerly versus Zyplast for the correction of nasolabial folds;Narins;Dermatol Surg,2003
2. Changes associated with the aging face;Friedman;Facial Plast Surg Clin North Am,2005
3. Cosmetic surgery;Hollander,1912
4. Plastic and cosmetic surgery of the face;Bettman;Northwest Med,1920
5. Historical trends in surgery for the aging face;Adamson;Facial Plast Surg,1993