1. Stifling new cures: the true cost of lengthy clinical drug trials;Roy ASA,2012
2. Clinical trial costs are rising rapidly;Silverman;Pharmalot: Wall Street J,2011
3. Phase 3 clinical trial costs exceed $26,000 per patient,2006
4. Improving the informed consent process for research subjects with low literacy: a systematic review;Tamariz;J Gen Intern Med,2013
5. Effectiveness of multimedia aids to enhance comprehension of research consent information: a systematic review;Palmer;IRB,2012