references
Beck, Douglas, and Jeffrey Danhauer. “Amplification for Adults with Hearing Difficulty, Speech in Noise Problems - and Normal Thresholds.” Journal of Otolaryngology-ENT Research, vol. 11, no. 1, 2019, pp. 84–88. [...]
Beck, Douglas, and Jeffrey Danhauer. “Amplification for Adults with Hearing Difficulty, Speech in Noise Problems - and Normal Thresholds.” Journal of Otolaryngology-ENT Research, vol. 11, no. 1, 2019, pp. 84–88. [...]