1. Clinical use of Skype: a review of the evidence base;Armfield;J. Telemed. Telecare,2012
2. United Nations Development Programme. Human Development Reports, Human Development Index 2013. (Available online at: http://hdr.undp.org/en/content/human-development-index-hdi-table; last checked December 2014).
3. United Nations Development Programme. Human Development Reports, Human Development Index 2013. Technical Notes. (Available online at: http://hdr.undp.org/sites/default/files/hdr_2013_en_technotes.pdf; last checked December 2014).
4. CASP-UK. Critical Appraisal Skills Programme (Available online at: http://www.casp-uk.net/#!casp-tools-checklists/c18f8; last checked December 2014).
5. An online positive parenting skills programme for paediatric traumatic brain injury: feasibility and parental satisfaction;Antonini;J. Telemed. Telecare,2012