1 “..., epistemology, norms of evidence and, in general, all of the intellectual and attitudinal challenges that face...”

2 Table of Contents: “... -- 5 Additional considerations about the bioeffects -- 6 Review of epidemiological studies -- III...”

3 Table of Contents: “... of Epistemological Levels of Systems -- 1.4. The Role of Mathematics -- 1.5. The Role of Computer Technology -- 1.6...”

4 “..., the papers represent con­ tributions from such diverse fields as toxicology, epidemiology, chemistry, biology...”