1. World Health Organisation. International Classification of Functioning, Disability and Health. 2018. Available at https://www.who.int/classifications/icf/en/ (accessed May 2019).
2. Gallagher J E, Fiske J. Special Care Dentistry: a professional challenge. Br Dent J 2007; 202: 619-629.
3. Royal College of Surgeons. Specialty Training Curriculum: Special Care Dentistry. 2009. Available at https://www.rcseng.ac.uk/-/media/files/rcs/fds/publications/curricula/scdcurriculumfebruary2010.pdf (accessed May 2019).
4. National Institute for Health Research. Journals Library. Available at https://www.journalslibrary.nihr.ac.uk/#/ (accessed May 2019).
5. University of Aberdeen. REFLECT trial. Available at https://w3.abdn.ac.uk/hsru/REFLECT/Public/Public/index.cshtml (accessed May 2019).