Comella, CL, J Jankovic, RA Hauser, AT Patel, MD Banach, E Ehler, D Vitarella, RG Rubio, and TM Gross. 2024. “Efficacy and Safety of DaxibotulinumtoxinA for Injection in Cervical Dystonia: ASPEN-1 Phase 3 Randomized Controlled Trial.”. Neurology. 2024 Feb 27;102(4):e208091. Doi: 10.1212/WNL.0000000000208091. Epub 2024 Jan 31. PMID: 38295339.