title: Letter: Chromosome abnormality and perinatal death.
mesh_terms: D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002902:Chromosomes, Human, 16-18; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D005260:Female; D005313:Fetal Death / Q000209:etiology; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007621:Karyotyping; D011247:Pregnancy; D012729:Sex Chromosome Aberrations