inverse proportion observed greater exposure leads lower incidence ref name bh '''plausibility''' plausible mechanism cause effect helpful hill noted knowledge mechanism limited current knowledge ref name bh '''coherence''' coherence epidemiological laboratory findings increases likelihood effect however hill noted lack laboratory evidence cannot nullify epidemiological effect associations ref name bh '''experiment''' occasionally possible appeal experimental evidence ref name bh '''analogy''' effect similar factors may considered ref name bh legal interpretation
Applied science Medicine and health Epidemiology