title: What is to be done with the XYY fetus.
mesh_terms: D006801:Humans; D008297:Male; D012107:Research Design; D012729:Sex Chromosome Aberrations / Q000150:complications / Q000196:embryology; D012920:Social Behavior Disorders / Q000209:etiology; D014997:XYY Karyotype / Q000150:complications / Q000196:embryology