✦ LIBER ✦
Presentation of a simple device for excluding interfering noises from one ear while testing hearing acuity of the other ear.
✍ Scribed by Dr. Horace Newhart
- Book ID
- 115036152
- Publisher
- John Wiley and Sons
- Year
- 1942
- Tongue
- English
- Weight
- 52 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0023-852X
No coin nor oath required. For personal study only.