Usher's and Hallgren's Syndromes
- 1 January 1974
- journal article
- Published by Cambridge University Press (CUP) in Acta geneticae medicae et gemellologiae
- Vol. 23 (S1) , 49-55
- https://doi.org/10.1017/s1120962300023623
Abstract
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.Keywords
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