Fryns J P, Kleczkowska A, Wolfs I, van den Berghe H
Clin Genet. 1984 Nov;26(5):445-7. doi: 10.1111/j.1399-0004.1984.tb01086.x.
Two fragile X chromosomes were found in 20% of the cells in a moderately mentally retarded patient with Klinefelter syndrome.
在一名患有克兰费尔特综合征的中度智力发育迟缓患者的20%的细胞中发现了两条脆性X染色体。