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Since Feingold and his collegues first describes the trisomy 9 syndrome in 1973, approximately 30 patients with trisomy of the chromsome 9 have been described. Trisomy 9 has been reported as either partial or complete. Complete trisomy is rare and incompatible with a a long life.
Before this report, this syndrome has not been reported in Korea. A neonate was diagniosed... |
