Chromosome studies of males in an institution for the mentally handicapped.
- 1 June 1989
- journal article
- research article
- Published by BMJ in Journal of Medical Genetics
- Vol. 26 (6) , 379-381
- https://doi.org/10.1136/jmg.26.6.379
Abstract
Karyotypes were examined in 512 (91 .cntdot. 9%) of 557 male patients in an institution for the mentally handicapped. A total of 110 (21 .cntdot. 5%) had an abnormal karyotype: 65 (12 .cntdot. 7%) with Down''s syndrome, 30 (5 .cntdot. 9%) with the fragile X syndrome, 13 (2 .cntdot. 5%) with autosomal anomalies other than Down''s syndrome (12 unbalanced, one balanced), and two (0 .cntdot. 4%) with sex chromosome anomalies.Keywords
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