1. Academy of Medical Educators. Professional standards 2014. Cardiff: Academy of Medical Educators; 2014.
2. Ackers P. Trade Unions as professional associations. In: Johnstone S, Ackers P, editors. New perspectives on employment relations. Oxford: Oxford University Press; 2015. p. 95–127.
3. AdvanceHE UK. Professional standards framework. York: Higher Education Academy; 2011.
4. American Optometric Association. Optometry history timelines. Available from
https://www.aoa.org/about-the-aoa/archives-and-museum/optometry-history-timeline
. Accessed 23 Sept 2019.
5. Association of Optometrists. Voice of the profession. Available from
https://www.aop.org.uk/about-aop/aop-news/2017/02/07/voice-of-the-profession
. Accessed 21 Mar 2019.