1. American National Standard Maximum Permissible Noise Levels for Audiometric Test Rooms, ANSI S3.1.,1999
2. American National Standard Specifications for Audiometers, ANSI S3.6.,2004
3. Contribution of high frequencies to speech recognition in quiet and noise in listeners with varying degrees of high-frequency sensorineural hearing loss.;Amos;J Speech Lang Hear Res,2007
4. Sentence materials controlling word usage and confusability.;Bell;J Am Acad Audiol,2001
5. Effectiveness of directional microphones and noise reduction schemes in hearing aids: A systematic review of evidence.;Bentler;J Am Acad Audiol,2005