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Search results with tag "Intervention study"
Clinical Trials and Intervention Studies - Wiley
www.wiley.comClinical Trials and Intervention Studies The Intervention Study In a controlled observational cohort study,two groups of subjects are selected from two populations that (hopefully) differ in only one characteristic at the start. The groups of subjects are studied for a speciļ¬c period and contrasted at the end of the study period.