Rear view of a hearing aid worn by a 71 year old male patient. This battery powered device is worn partly behind the ear and amplifies sound to treat partial deafness | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Marazzi, Dr. P. |
Taille de l’image : | 3408 px × 5130 px |
Model Release : | Disponible |
Restrictions : |
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