RT Journal Article SR Electronic T1 Distinctive audiometric features between USH2A and USH2B subtypes of Usher syndrome JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 281 OP 283 DO 10.1136/jmg.39.4.281 VO 39 IS 4 A1 Hmani-Aifa, M A1 Arab, S Ben A1 Kharrat, K A1 Orten, D J A1 Boulila-Elgaied, A A1 Drira, M A1 Hachicha, S A1 Kimberling, W J A1 Ayadi, H YR 2002 UL http://jmg.bmj.com/content/39/4/281.abstract AB