1. Environmental and heritable factors in the causation of cancer;Lichtenstein;N Engl J Med,2000
2. On genes, individuals, society, and epidemiology;Diez-Roux;Am J Epidemiol,1998
3. Philosphy of medicine;Wulff,1990
4. A probalistic theory of causation;Suppes,1970
5. Lexikon der philosophischen Begriffe;Ulfig,1999