1. O’Shaughnessy JA, Kelloff GJ, Gordon GB, Dannenberg AJ, Hong WK, Fabian CJ, et al. Treatment and prevention of intraepithelial neoplasia: An important target for accelerated new agent development. Clin Cancer Res 2002; 8:314–46
2. Umar A, Viner JL, Richmond E, Anderson WF, Hawk ET. Chemoprevention of colorectal carcinogenesis. Int J Clin Oncol 2002; 7:2–26
3. Sporn MB, Suh N. Chemoprevention: an essential approach to controlling cancer. Nature Rev 2002; 2:537–43
4. Wolff J. The Science of Cancerous Disease from Earliest Times to the Present. Watson Publishing International, 1989:3. Republished from, Vol I, Die Lehre von der Krebskrankheitvon den altenten Zeiten bis zur Gegenwart, 1907
5. Olson JS. The History of Cancer—An Annotated Bibliography. New York: Greenwood Press, 1989:41