RT Journal Article SR Electronic T1 Trisomy 9p due to unusual maternal translocation (3;9). JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 320 OP 320 DO 10.1136/jmg.21.4.320 VO 21 IS 4 A1 Calzolari, E A1 Contiero, M R A1 Aiello, V A1 Bortotto, L YR 1984 UL http://jmg.bmj.com/content/21/4/320.abstract AB