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The Work of the National Perinatal Epidemiology Unit: One Example of Technology Assessment in Perinatal Care

Abstract This article describes one approach to assessing the effects of perinatal care–that adopted by the National Perinatal Epidemiology Unit in Oxford, England. The unit's research has been based primarily on a combination of simple, descriptive analyses of observational data and statistically robust analyses of evidence derived from randomized controlled trials.