Article
Sex ratio and associated risk factors for 50 congenital anomaly types: Clues for causal heterogeneity
1 Jan 2004
Abstract excerpt
BACKGROUND: Sex ratio (SR) deviations have been reported for many congenital anomalies, but so far no satisfactory explanation for these deviations has been found. The aim of this study was to detect sex-related differences in the association between risk factors and congenital anomalies, and to relate these differences with possibly underlying causes of birth defects. METHODS: Between 1982 and 1999, 1,444,646...
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