However, these changes did not reach statistical significance (delayed diagnoses: χ 2 =0.042, P =0.839; prenatal and prenatal genetic diagnoses: χ 2 =0.699, P =0.348), as detailed in Table 1 .
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Evaluation of Integrated Service Strategy Based on Diagnosis of Duct-Dependent Congenital Heart Disease and Neonatal Mortality Data Analysis - Beijing, China, 2021-2022.
1
0.8390
0.8390