PT  - JOURNAL ARTICLE
AU  - Mattina, T
AU  - Sorge, G
AU  - Milone, G
AU  - Garozzo, R
AU  - Conti, L
TI  - Duplication 9p due to unequal sister chromatid exchange.
AID  - 10.1136/jmg.24.5.303
DP  - 1987 May 01
TA  - Journal of Medical Genetics
PG  - 303--305
VI  - 24
IP  - 5
4099  - http://jmg.bmj.com/content/24/5/303.short
4100  - http://jmg.bmj.com/content/24/5/303.full
SO  - J Med Genet1987 May 01; 24
AB  - A case of trisomy 9p syndrome is reported. The karyotype showed a tandem duplication of the short arm and of the inverted heterochromatic block of chromosome 9. Unequal sister chromatid exchange seems to be the only possible cause of this finding.