盆;The main causes of dystocia of vertex presentation were occiput malpresentation, macrosomic infant, uterine atony, abnormal pelvic and genital tract.
导致头位难产
主要因素依次为胎头位
、巨大儿、宫缩乏力、软产道及
产道。
部；后头部The main causes of dystocia of vertex presentation were occiput malpresentation, macrosomic infant, uterine atony, abnormal pelvic and genital tract.
导致头位难产主要因素依次为胎头位、巨大儿、宫缩乏力、软产道及产道。
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