1. Bruce Keogh. Review_of_the_Regulation_of_Cosmetic_Interventions.pdf. Published 2013. Accessed November 17, 2020. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/192028/Review_of_the_Regulation_of_Cosmetic_Interventions.pdf.
2. Qualification requirements for delivery of cosmetic procedures: Non-surgical cosmetic interventions and hair restoration surgery. Published November 2015. Accessed November 17, 2020. https://www.hee.nhs.uk/sites/default/files/documents/HEE%20Cosmetic%20publication%20part%20one.pdf.
3. Frequently asked questions: Supply and administration of Botox®, Vistabel®, Dysport® and other injectable medicines outside their licensed medicinal uses such as in cosmetic procedures : MHRA. Accessed,2020
4. Clinical Uses of Botulinum Neurotoxins: Current Indications, Limitations and Future Developments;Chen;Toxins,2012
5. AbobotulinumtoxinA: A 25-Year History;Monheit;Aesthet Surg J,2017