Most programmes showed an increasing trend in prenatally diagnosed CCHD cases.
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Prenatal diagnosis and prevalence of critical congenital heart defects: an international retrospective cohort study.
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The sentences
During the study period, CCHD showed an increasing trend in total prevalence in France-Rhone Alpes and USA-Arkansas, a decreasing trend in the Czech Republic and USA-Atlanta, and more complex trends in Northern Netherlands and Germany-Saxony Anhalt (online supplementary table S1 ).