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D/21罗伯逊易位是易位型21三体中最常见的类型。本院84年底、85年初在遗传咨询门诊中检出了一个14/21罗伯逊易位型的21三体性女孩和一个具有同样易位的第
D / 21 Robertsonian translocation is the most common type of trisomic 21 trisomy. Our hospital at the end of 84, early 85 early in the genetic counseling clinic detected a 14/21 Robertson translocation of trisomy 21 and a girl with the same translocation