1. Su di un caso di trisomia del gruppo cromosomico 16-18;Babini;Boll. Soc. Ital. Biol. Sper.,1963
2. Karyotyping amniotic fluids from patients with high serum alpha-fetoprotein;Bobrow;Lancet,1981
3. A new trisomic syndrome;Edwards;Lancet,1960
4. Structural abnormalities of chromosome 18. II. Two familial translocations, B/18 and 16/18, ascertained through unbalanced forms;Eriksson;Ann. Génét.,1971
5. Neural tube defects in trisomy 18;Flannery;Prenat. Diagn.,1986