滞产;
a non-anticoagulant heparin is now in phase i clinical trial for the prevention and treatment of protracted labour [52].
非肝素抗凝血剂是目前在第一阶段的预防和治疗的临床试验的长期劳动[52]。
However, earlier today the18-year-old matriarch of the Asian elephant herd at Taronga gave birth to a male calf after a protracted labour lasting nine days.
然而今天早些时候,这头18岁高龄的亚洲象在长达九天的漫长挣扎后产出了一头雄性幼象。
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