Since 1990, 2 randomized trials and seeral obserational studies hae ealuated the benefits s risks of expectant management of seere preeclampsia at <34 weeks of gestation.
Since 1990, 2 randomized trials and seeral obserational studies hae ealuated the benefits s risks of expectant management of seere preeclampsia at <34 weeks of gestation.
自1990年以来，2个随机试验和一些观察性研究评价了对于妊娠小于34周的重度先兆子痫采用保守治疗的利与弊。