title: Trisomy of chromosome 20/isochrome 12p.
authors.forename: M W
authors.initials: MW
authors.lastname: Steele
authors.forename: S
authors.initials: S
authors.lastname: Lenkey
mesh_terms: D002869:Chromosome Aberrations / Q000175:diagnosis* / Q000235:genetics; D025063:Chromosome Disorders; D002881:Chromosomes, Human, Pair 12; D006801:Humans; D007621:Karyotyping / Q000379:methods*