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	Využití volné nádorové DNA jako nového cíle pro minimálně-invazivní diagnostiku a zpřesnění molekulární klasifikace kolorektálních nádorů Mináriková, Petra ; Mináriková, Lucie ; Ústřední vojenská nemocnice (Praha, Česko) Detailed record
	Klinický význam vyšetření epigenetických faktorů pro zpřesnění diagnostiky, odhadu prognózy a rizika rekurence po kurativní resekci karcinomu pankreatu Zavoral, Miroslav ; Ústřední vojenská nemocnice (Praha, Česko) Detailed record
	A use of epidemiology data for a cancer risk assessment and the recautionary principle Bencko, Vladimír The traditional approaches and study designs in cancer epidemiology have not been very successful in identifying and evaluating adequately the potential risk and/or protective factors associated with the disease. The main reasons for the failure are often due to small study sample size, and inadequate exposure information. In this paper, issues and approaches relevant to these two challenges are discussed. Multicentre study is proposed as a way to increase study size and to mitigate criticism about meta-analysis of independent studies. A multicentre study of large cohort or case–control studies also offers an exciting opportunity to study the contribution of epigenetic events that may be associated with life-style and environmental risk factors for human health. Optimizing methods for exposure assessment and how to reduce exposure misclassification represent a difficult component in epidemiology studies. A potentially useful approach for improving exposure estimate is to rely on biomarkers of exposures. An example is provided to demonstrate how biomarkers of exposures could provide valuable information in addition to exposure measurements in traditional epidemiological studies. Finally, it is argued that risk assessment and the precautionary principle should not be viewed as conflicting paradigms but, rather, as a complementary approach for developing appropriate policies to address risks posed by exposure to carcinogens and a wide spectrum of other health hazards. Detailed record

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