title: [Analysis of the cause and rate of regional maternal death in 21 provinces, municipalities and autonomous regions].
mesh_terms: D002681:China; D005260:Female; D006331:Heart Diseases / Q000401:mortality; D006801:Humans; D008428:Maternal Mortality; D006473:Postpartum Hemorrhage / Q000401:mortality*; D011225:Pre-Eclampsia / Q000401:mortality; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000401:mortality