1. Fundamentals of Clinical Trials;Friedman,1996
2. The historical development of clinical therapeutic trials;Bull;J. Chronic Dis.,1959
3. Garrison Lecture: Ceteris paribus: the evolution of the clinical trial;Lilienfeld;Bull. Hist Med.,1982
4. Trials and errors in clinical research;Gluud;Lancet,1999
5. Clinical Trials: Design, Conduct, and Analysis;Meinert,1986