| Popis: |
Epidemiological studies serve as a basis for evaluating the impact of risk factors on population health. The main goal of such research is to identify the relation between the morbidity rate and the environmental factors. The main task is to analyze and assess the patterns of disease emergence and spread in various social and age groups in the territories under study in different periods of time. The most labor-consuming stage of epidemiological researches is receiving basic data about a condition of environmental nd population health, especially in performing of longitudinal retrospective studies. |
