Obstetric characteristics during the study period, before and after Oct 6<sup>th</sup> 2008.
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ΦMissing values n = 8. €Missing values n = 2. *p-values are based on Chi-square test, except for birth weight and gestational length where linear regression analysis, adjusted for maternal age, parity and seasonality was used. Significance level is 0.05.
创建时间:
2013-12-04




