The four major killers are: severe bleeding (mostly bleeding postpartum), infections (also mostly soon after delivery), hypertensive disorders in pregnancy (eclampsia) and obstructed labour.

四个主要的死因包括严重的大出血（大多数是产后出血）、感染（大多数是败血症）、妊娠高血压（通常是子痫）和难产。

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His team also found that 13 women who had suffered from pre-eclampsia had slightly lower levels of 2-me in their blood before birth than women who went through a normal pregnancy.

他的团队也发现了，13名患先兆子痫的孕妇的血液中2 - ME水平在生产前较妊娠正常的孕妇为低。

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The expression of T-lymphocyte subpopulations of decidual-placental bed in pregnancy with pre-eclampsia and clinical significance.

妊高征患者胎盘床蜕膜t淋巴细胞亚群的表达与临床意义。

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An initial study indicated that taking the vitamins early in pregnancy halved rates of pre-eclampsia in high-risk women.

BBC: Vitamins 'could prevent pregnancy danger'

We would advise all women, pregnant and considering becoming pregnant to eat a sensible and healthy diet in order to help reduce the risk of pregnancy complications such as pre-eclampsia.

BBC: NEWS | Health | Body fat link to pre-eclampsia