Analysis of data from abortuses which failed to grow in culture.
D000031:Abortion, Septic; D000022:Abortion, Spontaneous; D000032:Abortion, Therapeutic; D002869:Chromosome Aberrations / Q000453:epidemiology; D025063:Chromosome Disorders; D046508:Culture Techniques; D005260:Female; D005313:Fetal Death; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D011247:Pregnancy; D011271:Pregnancy, Ectopic