1. National Research Ethics Service. Information Sheets and Consent Forms Guidance For Researchers and Reviewers,2009
2. Empirical research on informed consent. An annotated bibliography;J Sugarman;Hastings Center Rep,1999
3. What research participants want to know about research: a systematic review. BMJ Open;H Kirkby,2012
4. Guidelines for good clinical practice (GCP) for trials on pharmaceutical products,1995
5. Medicines Agency;European;ICH Topic,2002