Fig. 2
From: Vestibular impact of Friedreich ataxia in early onset patients
Hearing evaluation. Graphic representation of the prevalence of the various observations. Impedancemetry was performed on 41 subjects (82 ears); Hearing evaluation was performed on 40 subjects (80 ears); DPOAEs were evaluated on ears with normal type A tympanometry (69 ears); ABRs were performed on 39 subjects (78 ears)