Discussion: The Volumetric Effect of Botulinum Toxin Type A Injection on the Parotid Gland: A Randomized Controlled Trial

Philadelphia, PA From the Division of Plastic and Reconstructive Surgery, University of Pennsylvania. Received for publication August 11, 2023; accepted August 18, 2023. Disclosure statements are at the end of this article, following the correspondence information. Yoshiko Toyoda, MD, Division of Plastic and Reconstructive Surgery, University of Pennsylvania, 10 Penn Tower, 3400 Spruce Street, Philadelphia, PA 19104, [email protected] Ivona Percec, MD, PhD, Division of Plastic and Reconstructive Surgery, University of Pennsylvania, 10 Penn Tower, 3400 Spruce Street, Philadelphia, PA 19104, [email protected]