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2. Department of Health Trust, Assurance and Safety Cm713 2007
3. General Optical Council Why is CET changing? 2012 http://www.optical.org/en/Education/enhanced-cet-post–2012/why-is-cet-changing.cfm
4. Europe Economics Risks in the Optical Profession 2010
5. Collaborative solutions - clinical supervision and teacher support teams: reducing professional isolation through effective peer support;Bedward;Learn Health Soc Care,2005