The Effectiveness of Over the Counter Hearing Products for Middle-Aged Adults
Clinical trial NCT03511417 · WITHDRAWN
Trial details
- NCT number
- NCT03511417
- Sponsor
- University of Massachusetts, Amherst
- Status
- WITHDRAWN
- Phase
- Not Applicable
- Study type
- INTERVENTIONAL
- Start date
- 2018-10-16
- Primary completion
- 2020-01-17
- Enrollment
- 0
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