| 1 | I got my hearing aid on the National Health (Service). | |
| 2 | They decided to "yoke" the old man with the hearing aid. | |
| 3 | The discovery could lead to hearing aids that emit puffs of air. | |
| 4 | It calls for the provision of devices, including wheelchairs and hearing aids. | |
| 5 | Current production of hearing aids meets less than 10% of global need. |