title: dNORs and meiotic nondisjunction.
authors.affiliation: Department of Obstetrics and Gynecology, University of Maryland School of Medicine, Baltimore 21201.
authors.forename: S
authors.initials: S
authors.lastname: Schwartz
authors.forename: D
authors.initials: D
authors.lastname: Roulston
authors.forename: M M
authors.initials: MM
authors.lastname: Cohen
mesh_terms: D002874:Chromosome Mapping; D004314:Down Syndrome / Q000235:genetics; D006801:Humans; D009630:Nondisjunction, Genetic; D009697:Nucleolus Organizer Region; D012729:Sex Chromosome Aberrations / Q000235:genetics