Maternal death and high-risk pregnancy: an analysis of 40 maternal deaths in the collaborative project.
D000022:Abortion, Spontaneous; D000293:Adolescent; D000328:Adult; D001741:Black or African American; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008423:Maternal Age; D008428:Maternal Mortality; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications; D044465:White People