探讨分娩前后使用专业护理服务与产妇死亡率和围产期死亡率之间关系的性质。

To examine the nature of the relationship between the use of skilled attendance around the time of delivery and maternal and perinatal mortality.

youdao

探讨分娩前后使用专业护理服务与产妇死亡率和围产期死亡率之间关系的性质。

To examine the nature of the relationship between the use of skilled attendance around the time of delivery and maternal and perinatal mortality.

youdao