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Usher's and Hallgren's Syndromes

Published online by Cambridge University Press:  01 August 2014

S. Merin ,
F. A. Abraham  and
E. Auerbach
S. Merin*
Affiliation:
Department of Ophthalmology and the Vision Research Laboratory, Hadassah University Hospital, Jerusalem, Israel
F. A. Abraham
Affiliation:
Department of Ophthalmology and the Vision Research Laboratory, Hadassah University Hospital, Jerusalem, Israel
E. Auerbach
Affiliation:
Department of Ophthalmology and the Vision Research Laboratory, Hadassah University Hospital, Jerusalem, Israel
*
Department of Ophthalmology, Hadassah University Hospital, P.O. Box 499, Jerusalem, Israel

Abstract

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A study has been made of 35 patients belonging to 20 families, all diagnosed as Usher's syndrome (retinitis pigmentosa and deafness). The results indicate that there are four clinical types, which have been called Types I to IV. Genetically, they represent at least two, and possibly three or four, separate entities.

Type
1. Tapetoretinal Degenerations and CNS Genetic Disease
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 23 , supplement S1 , January 1974 , pp. 49 - 55
Copyright
Copyright © The International Society for Twin Studies 1974

References

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