The average of ARL of 50 young adults who had normal hearing and no past history of facial palsy was used as a normal standard.

 
  • 在實(shí)際的做法上,先以50例未曾有顏面神經(jīng)麻痹病史聽(tīng)力正常的年輕男女作檢查,求得正常的平均值,并設定一個(gè)標準差之內為正常值。
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