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2. b. www.wiley.com/egacy/willeychi/genmed/clinical/ . Accessed 15 Dec 2015.
3. c. http://www.researchgate.net/publication/237620188_Report_and_Recommendations_of_thPanel_to_Assess_the_NIH_Investment_in_Research_on_Gene_Therapy . Accessed 5 Dec 2015
4. d. http://www.researchgate.net/publication/237620188_Report_and_Recommendations_of_the_Panel_to_Assess_the_NIH_Investment_in_Research_on_Gene_Therapy . Accessed 5 Dec 2015
5. e. http://nexus.od.nih.gov/all/2013/09/24/one-nation-in-support-of-biomedical-research/