Philipp-Dormston WG, Wong C, Schuster B, Larsson MK, Podda M. Evaluating Perceived Naturalness of Facial Expression After Fillers to the Nasolabial Folds and Lower Face With Standardized Video and Photography. Dermatol Surg. 2018 Jun;44(6):826-832.

Data on file (MA-42769).

Restylane Defyne SG IFU.

Data on file (MA-43049).

Nikolis A, Enright KM, Lazarova D, Sampalis J. The Role of Clinical Examination in Midface Volume Correction Using Hyaluronic Acid Fillers: Should Patients Be Stratified by Skin Thickness? Aesthet Surg J Open Forum. 2020 Feb 6;2(1):ojaa005.