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2. Usher's syndrome with unusual otologic manifestations;Beatty;Mayo Clin. Proc.,1979
3. Usher's syndrome (Retinitis pigmentosa and deafness). A temporal bone report;Belal;J. Laryng. Otol.,1975
4. Davenport , S. L. H. G. S. Omen 1977 The heterogeneity of Usher's syndrome Abstract 215, Fifth International Conference on Birth Defects 21 27
5. Usher's syndrome in four hard-of-hearing siblings;Davenport;Pediatrics,1978