We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAdditional pedigree supporting the frequent origin of XXYY from consecutive meiotic non-disjunction in paternal gametogenesis.AuthorsRinaldi, A; Archidiacono, N; Rocchi, M; Filippi, GPublicationJournal of Medical Genetics, 1979, Vol 16, Issue 3, p225ISSN1468-6244Publication typearticleDOI10.1136/jmg.16.3.225