Chromosomal abnormalities of the fetus.
D000022:Abortion, Spontaneous / Q000209:etiology; D002869:Chromosome Aberrations / Q000150:complications; D025063:Chromosome Disorders; D005314:Embryonic and Fetal Development; D005260:Female; D005313:Fetal Death / Q000209:etiology; D005315:Fetal Diseases; D006801:Humans; D007621:Karyotyping; D008659:Metabolic Diseases / Q000209:etiology; D008938:Mitosis; D011247:Pregnancy