1. Randomised versus historical controls for clinical trials;Sacks, H.; Chalmers, T.; Smith, H.;American Jtournal of Medicine,1982
2. How readable are practice leaflets?;Albert, T.; Chadwick, S.;British Medical Journal,1992
3. Equipoise and the ethics of clinical research;Freedman, B.;New England Journal of Medicine,1987
4. Randomised comparison of procedures for obtaining informed consent in clinical trials of treatment for cancer;Simes, R.J.; Tattersall, M.H.N.; Coates, A.S.; Raghavan, D.; Soloman, H.J.; Smartt, H.,1986
5. Informed consent in clinical research with drugs in Spain: perspective of clinical trials committee members;Dal-Re, R.;European J7ournal of Clinical Pharmacology,1990