[Effect of various factors on the level of maternal death in heart defects].
D000367:Age Factors; D036861:Delivery, Obstetric; D005260:Female; D006331:Heart Diseases / Q000401:mortality*; D006801:Humans; D008428:Maternal Mortality; D008722:Methods; D009790:Occupations; D005082:Physical Exertion; D011225:Pre-Eclampsia; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000401:mortality*
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