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natural history study ударения
мед.	исследование естественного развития болезни (Helga Tarasova)
Английский тезаурус
natural history study
мед.	A type of medical research study. In natural history studies, researchers examine how a disease or medical condition develops over time. Researchers follow participants who are at risk for or have a specific disease or condition to determine how specific factors, such as family history, age, and occupational exposure, affect the development or progression of the disease or condition. Data collected during a natural history study also provide information on how best to treat a condition or disease.