Subclassification of preeclampsia.

  title={Subclassification of preeclampsia.},
  author={Peter von Dadelszen and Laura A Magee and James M Roberts},
  journal={Hypertension in pregnancy},
  volume={22 2},
Preeclampsia is a heterogeneous disorder, and as with other diseases (e.g., type I and type II diabetes), progress in the understanding of this disorder would be assisted greatly if subtypes could be characterized. We suggest that a first step would be to subdivide preeclampsia into early-onset disease (< 34 + 0 weeks') and late onset disease (> 34 + 0 weeks').