Heinrich Kasper

Effects of fish oil on fecal bacterial enzymes and steroid excretion in healthy volunteers: implications for colon cancer prevention.

A. Gostner, W. Scheppach, H. Kasper, 1996, Nutrition and cancer.

Proliferation of human colonic mucosa as an intermediate biomarker of carcinogenesis: effects of butyrate, deoxycholate, calcium, ammonia, and pH.

H P Bartram, W Scheppach, H Schmid, 1993, Cancer research.