Hi, I read your paper Influence of microphone soiling on syllable recognition in cochlear implants: simulation and recognition in noise and found it very interesting.
You have based your work on Serra PO's dissertation. (Serra P-O. Effect of the maintenance of hearing aids on their efficiency [(in French) Audiology dissertation]. University of Montpellier, France; 2015.)
I don't have access to Serra's work - could you tell me how long the subjects in that dissertation used their hearing aids for to get the median 2dB deterioration?