1. The American Society for Aesthetic Plastic Surgery's Cosmetic Surgery National Data Bank: Statistics 2018;Aesthet. Surg. J.,2019
2. Historical aspects of botulinum toxin: Justinus Kerner (1786–1862) and the “sausage poison”;Erbguth F.J.;Neurology,1999
3. Allergan(2020).Botox Cosmetic. Available from:https://www.botoxcosmetic.com/what‐is‐botox‐cosmetic/about‐botox‐cosmetic‐treatment?cid=sem_goo_43700047465576422&gclid=cj0kcqjwopl2brdxarisaemm9y8wwck42cficn7xgflohvkhc2grc3ilovyrsonacs888xlbk8_6uauaasgnealw_wcb&gclsrc=aw.ds.
4. Neurobiology of depression;Nestler E.J.;Neuron,2002
5. The contribution of muscular and auditory pathologies to the symptomatology of autism;Al Abdulmohsen T.;Med. Hypotheses,2011