For example, endoscopic biopsies have demonstrated that colon cancers derive from benign tumors called adenomas. A central data base with such information, derived from post-marketing surveillance, would enable rapid identification of dangerous drugs. Such a data system would also increase the likelihood that unexpected beneficial side-effects of drugs would be recognized. In vitro cell and tissue cultures are powerful investigative tools. Antibodies have broad research and clinical applications.
Researchers use millions of animals to produce antibodies by techniques that cause great suffering.
Mathematical models use human clinical and epidemiological data to generate hypotheses about complex disease processes. There are several likely explanations. Vivisection is easily published . Vivisection is self-perpetuating . Scientists' salaries and professional status are often tied to grants, and a critical element of success in grant applications is proof of prior experience and expertise.