Cox, Johnson, and Alexander (2012) report cochlear dead regions (DRs) occur when inner hair cells at a given frequency are lost or malfunctioning. Previous publications have suggested hearing-aid high-frequency gain should be attenuated in the presence of high frequency DRs.
Precondition for a VdS approval procedure, among others, is proof of a certified quality management system in accordance with DIN EN ISO 9001 for the manufacturing facility of the product.
What is FAAD? âFAADâ refers to a âFellow of the American Academy of Dermatology.â In the field of medicine, a medical student/graduate becomes a fellow once he/she has completed his/her residency program. In the case of dermatologists, the medical graduate or doctor will become part of the FAAD.