Association between duration of expulsive efforts and risk of severe PPH–univariable and multivariable analysis (n = 1699; 998 severe PPH and 701 controls).
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* multilevel logistic model regression including all variables in the tableAssociation between duration of expulsive efforts and risk of severe PPH–univariable and multivariable analysis (n = 1699; 998 severe PPH and 701 controls).
创建时间：
2015-12-03
