1. Lessons learned in participant recruitment and retention: the EXCITE trial;Physical Therapy,2006
2. Protecting boundaries of consent in clinical research: implications for improvement;Nursing Ethics,2014
3. Patient recruitment to a randomized clinical trial of behavioural therapy for chronic heart failure;BMC Medical Research Methodology,2004
4. Food and Drug Administration (2015) Integrated addendum to ICH E6(R1): Guideline for good clinical practice. E6(R2). www.fda.gov/downloads/Drugs/Guidances/UCM464506.pdf (Last accessed: 28 July 2017.)
5. Quality assurance for clinical trials;Frontiers in Oncology,2013