1. Hyaluronic acid fillers: Restylane and Perlane;Brandt;Facial Plast Surg Clin North Am,2007
2. Changes associated with the aging face;Friedman;Facial Plast Surg Clin North Am,2005
3. The evolution of soft tissue fillers in clinical practice;Murray;Dermatol Clin,2005
4. Injectable skin fillers;Narins;Clin Plast Surg,2005
5. Skin test hypersensitivity study of a cross-linked, porcine collagen implant for aesthetic surgery;Shoshani;Dermatol Surg,2007