http://2learnhow.com/story.php?title=when-the-threshold-found-was-db-or-greater-we-performed-bone When the threshold found was dB or greater, we performed bone conduction testing in the .kHz frequency range.The examinations were performed at least hours after the hearing rest.The audiograms were classified based on Ordinance of the Ministry of Labor .Given the preventive nature of this techni.When the threshold found was dB or greater, we performed bone conduction testing in the .kHz frequ Thu, 17 Nov 2022 23:06:52 UTC en