4例21号和22号环状染色体新病例，包括21号环状染色体的家族性传递。
Four new cases of ring 21 and 22 including familial transmission of ring 21.
作者信息
Palmer C G, Hodes M E, Reed T, Kojetin J
出版信息
J Med Genet. 1977 Feb;14(1):54-60. doi: 10.1136/jmg.14.1.54.
Abstract
Four new cases of ring G chromosomes are presented including one family in which the ring 21 is present in a mother and in her daughter, who has 47, XXX, r(21) chromosomes. The clinical and dermatoglyphic findings in r21 and r22 syndromes are reviewed.
摘要
本文报告了4例新的环状G染色体病例，其中1例为母女同患21号环状染色体，女儿核型为47, XXX, r(21)。本文还回顾了21号和22号环状染色体综合征的临床及皮纹学表现。
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