title: Chromosomal syndromes.
mesh_terms: D000026:Abortion, Habitual / Q000235:genetics; D000293:Adolescent; D002869:Chromosome Aberrations / Q000235:genetics*; D025063:Chromosome Disorders; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D005817:Genetic Counseling; D006801:Humans; D007231:Infant, Newborn; D007713:Klinefelter Syndrome / Q000235:genetics; D008297:Male; D011247:Pregnancy; D014424:Turner Syndrome / Q000235:genetics