Markides A
Department of Audiology, University of Manchester.
Br J Audiol. 1989 Feb;23(1):77-9. doi: 10.3109/03005368909077823.
This paper reports on the changing systems of amplification used by hearing-impaired children in the last decade (1977 to 1987). The major changes noted were in terms of ear-level v. body-worn hearing aids, monaural v. binaural hearing aids and FM-wireless v. hardwire group hearing aids (GHAs). There was an increase in the use of ear-level hearing aids, binaural hearing aids and FM-wireless hearing aids with a corresponding decrease in the use of body-worn hearing aids and hardwire GHAs.
本文报道了过去十年（1977年至1987年）听力受损儿童所使用的放大系统的变化情况。所观察到的主要变化涉及耳背式与耳内式助听器、单耳与双耳助听器以及调频无线与硬线集体助听器（GHAs）。耳内式助听器、双耳助听器和调频无线助听器的使用有所增加，而耳背式助听器和硬线集体助听器的使用则相应减少。
