Fig. 2From: The income-based disparities in preeclampsia and postpartum hemorrhage: a study of the Korean National Health Insurance cohort data from 2002 to 2013Relative inequality index (RIIKM) for preeclampsia and postpartum hemorrhage in the Korean National Health Insurance cohort database, from 2002 to 2013. a Preeclampsia treated with MgSO4 treatment, b Postpartum hemorrhage treated with blood transfusionBack to article page