Unlike the conventional evaluation method,the average hearing loss was calcula-ted by means of five frequencies(500,1000,2000,4000,8000Hz). The improvementgreater than 11dB was regarded as an efficient response.

 
  • 療效的判斷與慣用的方法不同,是以500、1000、2000、4000、8000赫茲5個(gè)頻率的平均聽(tīng)力損失改善11分貝以上者為有效標準。
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