en Michael S. Kaminer; et al. (). „Botulinum type A toxin injections for cosmetic use and hyperhidrosis”. Atlas of Cosmetic Surgery. Elsevier. p.273. ISBN978-1-4160-3662-3.Mentenanță CS1: Utilizare explicită a lui et al. (link)
en Jacob I. Beer; et al. (decembrie 2016). „Three-dimensional Facial Anatomy: Structure and Function as It Relates to Injectable Neuromodulators and Soft Tissue Fillers”. Plastic and Reconstructive Surgery – Global Open. 4 (12S): e1175. doi:10.1097/GOX.0000000000001175. PMID28018776.Mentenanță CS1: Utilizare explicită a lui et al. (link)
en A. M. Blumenfeld; et al. (mai 2017). „Insights into the Functional Anatomy Behind the PREEMPT Injection Paradigm: Guidance on Achieving Optimal Outcomes”. Headache. 57 (5): 766–777. doi:10.1111/head.13074. PMID28387038.Mentenanță CS1: Utilizare explicită a lui et al. (link)
en Jacob I. Beer; et al. (decembrie 2016). „Three-dimensional Facial Anatomy: Structure and Function as It Relates to Injectable Neuromodulators and Soft Tissue Fillers”. Plastic and Reconstructive Surgery – Global Open. 4 (12S): e1175. doi:10.1097/GOX.0000000000001175. PMID28018776.Mentenanță CS1: Utilizare explicită a lui et al. (link)
en A. M. Blumenfeld; et al. (mai 2017). „Insights into the Functional Anatomy Behind the PREEMPT Injection Paradigm: Guidance on Achieving Optimal Outcomes”. Headache. 57 (5): 766–777. doi:10.1111/head.13074. PMID28387038.Mentenanță CS1: Utilizare explicită a lui et al. (link)
en D. M. Caminer, M. I. Newman, J. B. Boyd (). „Angular nerve: new insights on innervation of the corrugator supercilii and procerus muscles”. Journal of Plastic, Reconstructive & Aesthetic Surgery. 59 (4): 366–372. PMID16756251.Mentenanță CS1: Nume multiple: lista autorilor (link)
