1. Down’s syndrome: an introduction for parents and carers;Cunningham,2006
2. Dennis J, Archer N, Ellis J, Marder L. Recognising heart disease in children with Down syndrome. Arch Dis Child Educ Pract Ed 2010.
3. Down’s Syndrome Medical Interest Group – Guidelines for Essential Medical Surveillance, Keypoint Series and Clinical Awareness Notes. Available online at: http://www.dsmig.org.uk/publications/index.html. (last accessed 27 March 2010)
4. Supplementation with antioxidants and folinic acid for children with Down’s syndrome: randomised controlled trial;Ellis;BMJ,2008
5. http://www.cardiff.ac.uk/optom/eyeclinic/downssyndromegroup/informationforpros/informationprofessionals.html review of vision in children with Down syndrome from Cardiff research group (last accessed 27 Mar 2010).