1. Surrogate end-point biomarkers as measures of colon cancer risk and their use in cancer chemoprevention trials;Einspahr;Cancer Epidemiol Biomarkers Prev,1997
2. Measurement of prostaglandin E2 in rectal mucosa in human subjects;Finley;Cancer Epidemiol Biomarkers Prev,1995
3. Dose de-escalation chemoprevention trial of alpha-difluoromethylornithine in patients with colon polyps;Meyskens;J Natl Cancer Inst,1994
4. Promoting effect of bile acids on colon carcinogenesis after intrarectal instillation of N-methyl-N′-nitro-N-nitrosoguanidine in rats;Narisawa;J Natl Cancer Inst,1974
5. Promoting effect of bile acids in colon carcinogenesis in germ-free and conventional F344 rats;Reddy;Cancer Res,1977