Ascher, B., Bayerl, C., Kestemont, P., Rzany, B., Edwartz, C., & Podda, M. (2017). A 12-Month Follow-up, Randomized Comparison of Effectiveness and Safety of Two Hyaluronic Acid Fillers for Treatment of Severe Nasolabial Folds. Dermatol Surg.

Ascher, Benjamin, Christiane Bayerl, Philippe Kestemont, Berthold Rzany, Carolina Edwartz, και Maurizio Podda. "A 12-Month Follow-up, Randomized Comparison of Effectiveness and Safety of Two Hyaluronic Acid Fillers for Treatment of Severe Nasolabial Folds." Dermatol Surg 2017.

Ascher, Benjamin, et al. "A 12-Month Follow-up, Randomized Comparison of Effectiveness and Safety of Two Hyaluronic Acid Fillers for Treatment of Severe Nasolabial Folds." Dermatol Surg 2017.