1. Beauchamp TL, Childress JF: Principles of Biomedical Ethics. 2001, Oxford: Oxford University Press, 5
2. World Medical Association (WMA): WMA Declaration of Helsinki: Ethical Principles for Medical Research Involving Human Subjects. 2008, Ferney-Voltaire, France: WMA, [
http://www.wma.net/en/30publications/10policies/b3/index.html
] (accessed 23 July 2014)
3. International Conference on Harmonisation (ICH): ICH Harmonised Tripartite Guideline: Guideline for Good Clinical Practice E6(R1). Step 4 version. Geneva: ICH, 10 June 1996 [
http://www.ich.org/fileadmin/Public_Web_Site/ICH_Products/Guidelines/Efficacy/E6_R1/Step4/E6_R1__Guideline.pdf
] (accessed 23 July 2014)
4. Flory J, Emanuel E: Interventions to improve research participants’ understanding in informed consent for research: a systematic review. JAMA. 2000, 6 (292): 1593-1601.
5. Nishimura A, Carey J, Erwin PJ, Tilburt JC, Murad MH, McCormick JB: Improving understanding in the research informed consent process: a systematic review of 54 interventions tested in randomized control trials. BMC Med Ethics. 2013, 14: 28-