TABLE IV.
Presumed etiology of each hearing-impaired subject's hearing loss.
| Subject | Ear tested | Etiology |
|---|---|---|
| I1 | left | Meniere's |
| I2 | left | unknown, congenital |
| I3 | right | Norrie disease |
| I4 | right | unknown |
| I5 | right | presbycusis |
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