Methodological aspects of risk simulation of trace element deficiencies are considered. A functional algorithm of epidemiological diagnosis of mass noncommunicable diseases is presented. The principles and a general algorithm of risk simulation of cause-result relationships in trace element deficiencies are given. The methodological aspects developed are a guideline for working out a conceptual subsystem model for the topical problem of health, determine the basic trends of integration of different services for implementation of the total strategy of prevention in the region.

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