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1 Universidade de São Paulo, São Paulo, Brazil
nancykn{at}centrinho.usp.br
Hearing loss constitutes an important category of congenital defects that can be isolated or part of the phenotypic spectrum of several syndromes. A clinical genetic study was performed on a sample of 144 patients with nonsyndromic hearing loss, establishing the sex distribution, type, degree, symmetry, laterality, progression, etiology, and, when possible, inheritance pattern.
Key Words: hearing loss, nonsyndromic hearing loss, hearing loss etiology
Submitted on February 9, 2004
Revised on July 7, 2004
Accepted on November 15, 2004
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