Geographic and ethnic differences in incidence of the pregnancy toxemias.
D000352:Africa, Northern; D001208:Asia; D004032:Diet; D004641:Emigration and Immigration; D005006:Ethnicity; D005060:Europe; D005260:Female; D006760:Hospitalization; D006801:Humans; D007557:Israel; D008423:Maternal Age; D010298:Parity; D011225:Pre-Eclampsia / Q000453:epidemiology* / Q000235:genetics; D011247:Pregnancy; D011446:Prospective Studies; D012189:Retrospective Studies